Chocolate French Bulldog: Brown vs Cocoa Explained

Editorial Director: Brandine StrandPublished November 2026 Sources cited

Quick Answer

A chocolate French Bulldog has brown pigment where a standard Frenchie has black, so the coat, nose and paw pads are brown. Two recessive genes cause it: classic brown (TYRP1, b/b) and cocoa (HPS3, co/co), a darker brown found in Frenchies in 2020. Chocolate, called “liver” in the standard, is a show-ring disqualification. No disease is established for classic brown.

Chocolate French Bulldog at a Glance

“Chocolate” in Frenchies is really two colors from two genes: classic brown (TYRP1) and cocoa (HPS3). Both are recessive.
Cocoa was named in 2020, and so far it has only been reported in French Bulldogs. It was once called “non-testable chocolate.”
In the discovery study, about 38% of black or blue Frenchies quietly carried one cocoa copy.
Cocoa dogs showed a platelet change in one small study, but owners reported no increased bleeding in daily life. Classic brown has no known health link.
“Liver,” the standard’s traditional word for chocolate, has been a disqualification in the AKC standard since at least 1991.

23 min read · skim it in 519 cited sourcesFree Breeder Screening Questionnaire

47 of 130brown or lilac Frenchies in the 2020 discovery study had two copies of cocoa, not classic brown

38%of black or blue control Frenchies in that study carried one hidden cocoa copy (42 of 111)

3.0%of UK French Bulldogs with a coat color recorded in 2013 vet records had liver or chocolate as their solid or main color (63 dogs)

Sources: Kiener et al., Genes, 2020; O’Neill et al., Canine Genetics and Epidemiology, 2018.

A chocolate French Bulldog is hard to miss: a brown nose, brown paw pads and a brown coat, from mid brown to the slightly darker cocoa. Sellers often market it as a “rare” color. In fact, chocolate in French Bulldogs is two colors from two different genes.

This guide explains both browns, the 2020 discovery that solved the mystery of “non-testable chocolate,” what the breed standards say, what the health research actually shows and how to confirm a dog’s color with a DNA test. For every other Frenchie color, start with our French Bulldog colors guide.

What Is a Chocolate French Bulldog?

A chocolate French Bulldog is a Frenchie whose black pigment has been changed to brown. The coat, nose and paw pads are brown instead of black. It is also called brown or liver (UC Davis lists its test as “Brown (B Locus/Chocolate/Liver)”), and in French Bulldogs it can come from two different recessive genes: classic brown (b/b) or cocoa (co/co).

Dogs make two kinds of pigment. Eumelanin is black, and phaeomelanin is red or yellow. Brown genes only change the black one. UC Davis puts it plainly: TYRP1 “does not affect phaeomelanin (red/yellow pigment)” (UC Davis VGL). That’s why, on a chocolate French Bulldog, fawn areas stay fawn while anything that would have been black turns brown.

Solid Chocolate and Chocolate and Tan

Price lists can split chocolate into more than one label: one breeder’s list, for example, separates solid chocolate from chocolate and tan. A solid chocolate is brown all over. Chocolate and tan adds tan points, a pattern our tri-color French Bulldog guide covers. And when a chocolate dog also has two dilute genes, the brown fades into the pale shades called lilac or isabella.

Close-up of a fluffy chocolate and tan French Bulldog with a brown coat and nose, tan points above the eyes and light eyes — A chocolate and tan Frenchie: brown coat and brown nose, with tan points above the eyes and on the cheeks. This one also has a long coat, the trait covered in our fluffy French Bulldog guide.

Brown French Bulldog Genes: Classic Brown vs Cocoa

Classic brown comes from the TYRP1 gene, called the B locus, and is written b/b. Cocoa comes from a different gene, HPS3, and is written co/co. Each needs two copies to show. UC Davis says cocoa makes “a slightly darker coat” than classic brown, and a standard brown test can’t detect it, because it’s a separate gene.

The Two Browns in French Bulldogs

Same idea, different genes. A lab report shows them on separate lines.

	Classic Brown (b/b)	Cocoa (“Non-Testable Chocolate”)
Gene	TYRP1 (B locus)	HPS3 (cocoa locus)
Brown genotype	b/b	co/co
Carrier	B/b, looks black, brindle or another non-brown color (unless also co/co)	N/co, looks black, brindle or another non-brown color (unless also b/b)
Shade	Brown	“Visibly darker brown,” per UC Davis
Other breeds	Many breeds	Only French Bulldogs so far
Known health link	None established	Platelet change, no bleeding reported

Sources: UC Davis VGL brown test; UC Davis VGL cocoa test; Kiener et al., 2020; Laukner et al., 2021.

Classic brown comes from TYRP1, a gene tested across many breeds. Five TYRP1 brown variants are known, and UC Davis tests “the three most common found across breeds” (UC Davis VGL). A dog with two brown copies (b/b) is brown. Classic brown is what the standard brown test detects; the brown that tested negative became known as “non-testable chocolate” and turned out to be cocoa.

Cocoa is the newcomer. UC Davis says the variant “is therefore not another allele of TYRP1,” and that it’s unknown whether it occurs in other breeds (UC Davis VGL). Embark, writing in January 2021, said it “has only been observed in French Bulldogs” (Embark).

Chocolate French Bulldog illustration, classic brown b/b — Illustrations: classic chocolate on the left, the slightly darker cocoa on the right.

Cocoa French Bulldog illustration with a dark brown coat and nose, HPS3 co/co — Illustrations: classic chocolate on the left, the slightly darker cocoa on the right.

How Cocoa Was Discovered: The “Non-Testable Chocolate” Mystery

Before 2020, some chocolate French Bulldogs tested negative for classic brown, and the color became known as “non-testable chocolate.” In 2020, a research team genotyped 373 French Bulldogs and found the answer: a variant in the HPS3 gene, which they named cocoa. It explained 47 of the 130 brown or lilac dogs in the study.

The researchers started with one brown dog that carried none of the known TYRP1 brown variants. Its DNA revealed a single-letter change in HPS3, a nonsense variant that cuts the gene’s protein short (Kiener et al., 2020). They then tested the wider group.

What Explained 130 Brown or Lilac French Bulldogs

From the 2020 discovery study. Share of the 130 brown or lilac dogs.

Classic brown, TYRP1 b/b (82 dogs)63%
Cocoa, HPS3 co/co (47 dogs)36%
Unexplained (1 dark brown and tan dog)1%

Bar length relative to 100%. Source: Kiener et al., 2020. This was a sample of privately owned dogs with owner-reported colors, not a census of the breed.

Another key number came from the comparison group. Of 111 black or blue French Bulldogs, 42 carried one cocoa copy, about 38%. None had two (Kiener et al., 2020). Cocoa was hiding in ordinary-looking dogs. That’s a study sample, not a breed-wide estimate, but it shows how two black Frenchies can produce a brown puppy. Our black French Bulldog guide covers these hidden cocoa carriers.

One dark brown and tan dog had neither gene, so the map isn’t finished. UC Davis now notes that cocoa “was previously referred to as ‘non-testable chocolate'” (UC Davis VGL). Since 2020, it’s testable.

Decision Tool: Reading a Brown French Bulldog’s DNA Report

b/b (classic brown, TYRP1)A chocolate French Bulldog. No disease is established for this brown in the breed.
co/co (cocoa, HPS3)A cocoa Frenchie. Tell your vet before any planned surgery, including dental surgery.
N/co or B/bA carrier of that gene. Not brown from it alone (unless the other brown gene is b/b or co/co), but can pass brown on to puppies.
Brown-looking dog, but negative for bothAsk the lab or seller to explain. Before 2020, cocoa dogs were called “non-testable chocolate.”

A quick guide based on the two browns described above. A cream (e/e) or clear fawn dog can carry b/b or co/co without a brown coat; its nose and paw pads are the usual clue, though cocoa can be hard to see in fawn, cream and white dogs. Sources: UC Davis VGL; Kiener et al., 2020.

How Chocolate French Bulldog Puppies Are Made: The Odds

Both browns are recessive, so a puppy needs one brown copy of the same gene from each parent. Two non-brown carriers of the same brown gene have about a 25% chance of a brown (b/b or co/co) puppy each time. A carrier bred to a brown dog averages 50%. A cocoa carrier bred to a classic brown carrier shouldn’t make a brown puppy (UC Davis data suggest one copy of each doesn’t make a brown dog), because the copies sit on different genes.

Chance That Each Puppy Is Brown, by Parents (Same Gene)

Standard recessive inheritance. Works for b (classic brown) or co (cocoa). Each puppy is a fresh coin toss. A cream (e/e) or clear fawn puppy can carry two brown copies without showing a brown coat.

Brown × brown (b/b × b/b or co/co × co/co)100%
Brown × carrier50%
Carrier × carrier (both non-brown)25%
Anything × non-carrier0%

Follows from the carrier rules on the UC Davis brown test page (“B/b” dogs pass brown to 50% of offspring) and the recessive mode on the cocoa test page.

Mixed cases are trickier. UC Davis data suggest one cocoa copy plus one classic brown copy doesn’t make a brown dog. And when a dog has two copies of both, the lab says it is “not yet possible to predict” the result (UC Davis VGL). Embark notes that b/b can mask cocoa, so such a dog may look like an ordinary mid or light brown (Embark).

A dog’s color DNA can be written as a short string, like “co/co d/d at/at.” The string decoder in our colors guide translates it.

What Does a Cocoa or Chocolate French Bulldog Look Like, Puppy to Adult?

A classic brown French Bulldog has a brown coat with a brown nose and pads. A cocoa Frenchie looks similar but slightly darker. Cocoa puppies can start out pale and darken as they mature: the discovery paper shows one dog whose coat and eyes “markedly darkened over time.” Add dilute genes and both browns fade toward lilac or isabella.

Chocolate French Bulldog puppy with a brown coat and brown nose standing on a gravel path at sunset — A young chocolate French Bulldog with a brown coat and brown nose. A puppy’s final shade can still change as it matures.

The discovery paper’s first figure shows the same cocoa dog twice, as a puppy and as an adult, and the legend says the coat and eye color “has markedly darkened over time” (Kiener et al., 2020). That’s one dog, not a growth study, but Embark describes the same pattern: a coat that can begin very light, close to a dilute brown, and darkens “as the dog reaches maturity” (Embark). So don’t judge a young cocoa or chocolate French Bulldog puppy’s final shade from its first photos.

A 2021 follow-up study found that cocoa dogs that also have two copies each of classic brown and dilute (b/b d/d) are further diluted “from dark brown to greyish brown” (Laukner et al., 2021). In the color-bred Frenchie community, cocoa plus dilute is called “lilac” and classic brown plus dilute “isabella” (Coats and Colors), and UC Davis says diluted chocolate is typically called isabella in French Bulldogs. Our lilac and isabella French Bulldog guide covers those shades.

Hidden Chocolate: Why the Nose Is the Clue

A cream (e/e) or clear fawn Frenchie can carry two brown genes and never show them in its coat. Cream dogs (e/e at the E locus) make no black pigment in their hair, so there’s nothing for brown to change. The usual giveaway is the nose and paw pads, which turn brown instead of black, though with cocoa it can be hard to see. A DNA test confirms it.

Chocolate and tan French Bulldog with a brown nose and amber eyes peeking out of an unzipped tent in warm evening light — Brown nose, not black: on this chocolate and tan Frenchie, the nose shows the brown pigment clearly.

UC Davis says two classic brown copies turn the nose and foot pads from black to brown, even in e/e dogs with red or yellow coats (UC Davis VGL). Embark says e/e cocoa dogs “will not show cocoa in their coat but should show it in their skin” (Embark). And the discovery paper notes that in fawn, cream and white Frenchies, cocoa “is not easily visible” (Kiener et al., 2020).

A cream puppy with a brown nose may be a hidden chocolate French Bulldog, and it can pass brown to its own puppies. The AKC standard even allows for this: in creams and fawns without black masks, a lighter nose is “acceptable but not desirable” (AKC, 2018). Our fawn and cream French Bulldog guide explains the E locus in full.

Is a Chocolate French Bulldog AKC Standard? Liver and the Breed Standards

No. A chocolate French Bulldog is disqualified in the AKC show ring, where the standard calls the color “liver.” The UK’s Royal Kennel Club (formerly The Kennel Club) accepts only brindle, fawn and pied, and the FCI standard says the nose is always black, “never brown.” Showing and registration are separate, though: the AKC says dogs of a disqualifiable color may still be registered.

“Liver” is the breed standard’s traditional word for brown, and the current 2018 AKC standard still uses it. The AKC standard approved June 10, 1991 lists “Solid black, mouse, liver, black and tan, black and white, and white with black” as disqualifications (AKC, 1991). In a 2008 clarification, the French Bull Dog Club of America wrote that liver and black and tan “do occur in French Bulldogs but can be truly described as rare” (FBDCA, 2008). The club says the color rules haven’t changed since the 1911 standard. Sellers and labs call the same brown dog “chocolate.”

Chocolate and the French Bulldog Standards

Quoted from each organization’s current standard.

Organization	What It Says	Chocolate
AKC / FBDCA (2018)	Accepts “white, cream, fawn (ranging from light fawn to a red fawn)”; names liver among the disqualifications	Disqualified
The Royal Kennel Club (UK)	“The only correct colours are: Brindle; Fawn; Pied”; “Any other colour or combination of colours unacceptable.”	Unacceptable
FCI (2023)	“fawn, brindled or not, with or without white spotting”; the nose is always black, “never brown or blue”; “Colour of nose other than black” is a disqualifying fault	Disqualified

The UK club’s members voted in 2024 to rename it The Royal Kennel Club. AKC show eligibility and AKC registration are different things. See our French Bulldog breed standard guide.

Liver to Cocoa: A Short Timeline

1Color Rules SetThe FBDCA says the breed’s color requirements have been the same since the 1911 AKC standard. We couldn’t find the 1911 text itself.1911
2Liver Named a DisqualificationThe AKC standard approved June 10, 1991 lists liver among the disqualifying colors.1991
3“Truly Described as Rare”The FBDCA’s color clarification calls liver rare in the breed.2008
4New Wording, Same RuleThe standard approved April 10, 2018 still names liver as a disqualification.2018
5Cocoa DiscoveredKiener and colleagues publish the HPS3 cocoa variant in French Bulldogs.2020
6First Health StudyLaukner and colleagues study platelets and clotting in 34 French Bulldogs.2021

Sources: AKC, 1991; FBDCA, 2008; AKC, 2018; Kiener et al., 2020; Laukner et al., 2021.

Are Chocolate French Bulldogs Healthy? Cocoa and the Platelet Question

No disease is established for classic brown in French Bulldogs. Cocoa is less settled. In people, HPS3 mutations cause a bleeding disorder, so researchers checked cocoa Frenchies. In 2021, a study of 34 dogs found cocoa dogs had fewer platelet dense granules, yet owners reported no increased bleeding. None of the cocoa dogs had had surgery, so that question stays open.

Why look at all? In humans, HPS3 changes cause Hermansky-Pudlak syndrome type 3, which the discovery paper describes as “oculocutaneous albinism and a bleeding disorder,” meaning a mild loss of pigment in the skin, hair and eyes plus a bleeding tendency (Kiener et al., 2020). UC Davis says those extra effects “have not been reported in dogs homozygous for the cocoa variant” (UC Davis VGL).

The 2021 study tested blood from 34 privately owned Frenchies, 10 of them co/co. Cocoa dogs had “significantly lowered platelet dense granules abundance,” a change in tiny storage packets inside platelets that help blood clot. But “no increased bleeding tendencies in daily routine were reported by dog owners,” and the authors noted that no cocoa dog in the group had undergone surgery (Laukner et al., 2021). They concluded the variant’s effect is “largely restricted to pigmentation,” and recommended checking buccal mucosal bleeding time, a bleeding-time test, before planned surgery.

Documented

Platelets: Fewer dense granules in 10 cocoa dogs
Bleeding: None reported by owners in daily life
Carriers: One-copy dogs tested like non-carriers

Unknown

Surgery: No cocoa dog in the study had surgery
Eyes: No eye exams reported in the discovery study
Scale: Only one small study so far

Claims We Checked

Do cocoa dogs bleed more?: Not reported in dogs
Is brown healthier?: No evidence found
Does chocolate cause hair loss?: Not in any source we found; color-linked hair loss (color dilution alopecia) is tied to the dilute gene (Merck Veterinary Manual)

The discovery paper’s own breeding advice is careful. Because of “the potential animal welfare concern,” the authors wrote, breeding cocoa dogs should only be considered “if these dogs do not have any clinically relevant impairments” (Kiener et al., 2020). If your Frenchie is co/co, tell your vet before any planned surgery and let them decide what to check.

Lilac and isabella dogs also carry the dilute gene, linked to color dilution alopecia, a hair-loss condition (see the health section of our colors guide and our merle, blue and lilac health guide). Whatever the color, breathing and back problems are well-documented French Bulldog risks, covered in our guides to BOAS, IVDD and common French Bulldog health problems.

Cocoa Frenchie Facing Surgery? The Plan

Text version: if a DNA report shows co/co, tell your vet when you book any procedure, and ask about a bleeding-time test first. Owners in the study reported no extra bleeding in daily life. The authors of the 2021 platelet study recommended checking buccal mucosal bleeding time before planned surgery (Laukner et al., 2021).

See Your Vet If Your Chocolate or Cocoa Frenchie Has

Bleeding that seems slow to stop after a nail trim, scrape or tooth loss · unexplained bruising · loud or labored breathing at rest, gasping or blue-tinged gums (an emergency) · back pain or wobbly back legs · hair loss on a lilac (cocoa plus dilute) dog.

Chocolate French Bulldog Price: How Much Is One?

Chocolate French Bulldogs can cost more than standard colors. One US breeder’s advertised pet prices, checked in October 2026, put solid chocolate at $4,000–$5,500 and chocolate and tan at $3,800–$5,500, against $2,999–$4,000 for black or brindle. These are sellers’ prices, not verified sales, and a higher price doesn’t mean a healthier dog.

One Breeder’s Advertised Pet Prices, by Color

Country Club Frenchies, limited registration (pet only), checked October 2026. Full registration, if the breeder approves it, adds $2,000.

Color	Advertised Price
Black and brindle	$2,999–$4,000
Fawn	$3,500–$5,000
Chocolate and tan	$3,800–$5,500
Solid chocolate (also platinum, solid blue, solid lilac, lilac and tan)	$4,000–$5,500
Merle (any color)	$4,000–$6,500

Source: Country Club Frenchies pricing. Sellers’ prices can change.

Why pay more for a chocolate French Bulldog at all? “Demand drives the market,” says the French Bull Dog Club of America, which warns that calling disqualified colors “rare” lets sellers charge “very inflated prices” (FBDCA). For every color side by side, see our French Bulldog price by color guide, and budget for pet insurance.

How to Confirm a Chocolate French Bulldog With a DNA Test

Ask for a test that covers both brown genes. A classic brown (B locus) test alone will miss cocoa: UC Davis says “the dark chocolate color of French Bulldogs will not be detected” by it. UC Davis’s French Bulldog coat color panel includes brown, cocoa and dilute, and Embark announced a cocoa result in January 2021. Check results on the lab’s own site.

Ask which loci were tested Panel

You want B (brown) and cocoa on the report, plus D (dilute) and E. UC Davis lists its French Bulldog coat color panel at $105 per dog (checked October 2026), covering agouti, brown, cocoa, dilute, dominant black, the E locus and piebald.

Read both brown lines Results

Classic brown reads B/B, B/b or b/b. Cocoa reads N/N, N/co or co/co. A brown dog should show b/b or co/co. A black dog may still be a carrier of either.

Check the nose on creams Clue

A cream (e/e) or clear fawn dog with a brown nose may carry two brown copies. Only the test tells you which gene.

Verify with the lab Proof

Ask for the lab’s own report link, or verify the result with the lab, and confirm the dog’s name and ID match.

Links: UC Davis French Bulldog coat color panel, brown test and cocoa test. Our French Bulldog DNA test guide compares labs for any chocolate French Bulldog.

Buying a Chocolate Frenchie Responsibly

Pick a chocolate French Bulldog breeder on health, not color. Ask for DNA results that include both brown genes, breathing assessments for both parents, registration papers and a written health contract. If a puppy is co/co, ask whether the parents have shown any bleeding problems. Walk away from anyone selling “rare” before “healthy.”

Free Download: The Breeder Screening Questionnaire

The questions to ask any Frenchie breeder, chocolate or not, about DNA results, breathing, parents and contracts. Print it, or keep it open on your phone when you call.

Privacy

Shopping for a chocolate French Bulldog puppy? Browse our French Bulldog breeder directory, and read our questions to ask a French Bulldog breeder, or browse our French Bulldog rescue directory.

What We Don’t Know

Open Questions About Chocolate and Cocoa

Where cocoa came from is unknown; we found no study saying it was crossed in. We found no published breed-wide frequency for the cocoa or classic brown genes, and the 38% figure comes from a study sample, not the whole breed. We don’t know whether cocoa dogs bleed more during surgery, and one dark brown and tan dog in the discovery study is still unexplained.

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Where the Experts Disagree on Cocoa Frenchies

Is cocoa a bleeding risk?Cocoa dogs had fewer platelet dense granules in a study of 34 Frenchies, but owners reported no increased bleeding, and UC Davis says the human syndrome’s extra effects haven’t been reported in cocoa dogs. The study authors concluded the effect is largely restricted to pigmentation but suggested a bleeding-time check before surgery. Our take: low concern day to day; just tell your vet.
Should cocoa dogs be bred?The 2020 discovery authors suggested breeding cocoa dogs only if they show no clinically relevant impairments, and no standard accepts brown. Our take: a breeder should be able to show health testing, not just a coat.

Your next step: Ask for both parents’ brown and cocoa DNA results using our breeder questions. If you already have a cocoa Frenchie, add the result to your vet file before any procedure. Our French Bulldog vet directory or our integrative vet directory can help you find a holistic or integrative vet, and our colors guide covers every shade.

Chocolate French Bulldog FAQ

What is the difference between a cocoa and a chocolate French Bulldog?

Cocoa is a separate brown gene, HPS3, discovered in French Bulldogs in 2020. Classic chocolate comes from TYRP1. UC Davis says cocoa is slightly darker, and a standard brown test won’t detect it, which is why it was once called “non-testable chocolate.” A coat color panel that includes cocoa tells them apart.

What is non-testable chocolate in French Bulldogs?

“Non-testable chocolate” is the name once used for brown French Bulldogs that tested negative on the standard brown (B locus) test. UC Davis says cocoa “was previously referred to as ‘non-testable chocolate’,” and Coats and Colors notes it was also called “untestable brown” before a test existed. It is a separate gene, HPS3, described in 2020. It is testable now, so ask for a panel that includes cocoa.

Is a liver French Bulldog the same as a chocolate?

Yes. “Liver” is the breed standard’s traditional word for a brown dog, and “chocolate” is the name sellers and labs use. The AKC standard approved in 1991 already named liver as a disqualification, and the 2018 standard still does. The FBDCA said in 2008 that liver occurs in the breed but is rare.

Can two black French Bulldogs have a chocolate puppy?

Yes, if both carry one copy of the same brown gene. Each puppy then has about a 25% chance of being brown. In the 2020 discovery study, 42 of 111 black or blue Frenchies (including brindles) carried one cocoa copy, so hidden carriers aren’t unusual in tested dogs.

Are chocolate French Bulldogs healthy?

No disease is established for classic brown. For cocoa, a 2021 study of 34 Frenchies found a platelet change in cocoa dogs, but owners reported no increased bleeding, and none of the cocoa dogs had had surgery. Breathing and back problems are well-documented risks for every Frenchie, whatever the color.

Is a chocolate French Bulldog AKC recognized?

Chocolate is a disqualification in AKC shows, where the standard calls it liver. The AKC says dogs of a disqualifiable color may still be registered, so papers are possible, but papers don’t make a dog eligible for the show ring. The UK’s Royal Kennel Club and FCI standards don’t accept brown either.

How much does a chocolate French Bulldog cost?

One US breeder’s advertised pet prices, checked in October 2026, listed solid chocolate at $4,000–$5,500 and chocolate and tan at $3,800–$5,500, compared with $2,999–$4,000 for black or brindle. That is one seller’s list, and a premium doesn’t mean better health. Always ask for both parents’ DNA results.

Sources

Genetics Research and Laboratories

Kiener S, Kehl A, Loechel R, Langbein-Detsch I, Müller E, Bannasch D, Jagannathan V, Leeb T. Novel brown coat color (cocoa) in French Bulldogs results from a nonsense variant in HPS3. Genes. 2020;11(6):636. doi:10.3390/genes11060636
Laukner A, Truchet L, Manukjan G, Schulze H, Langbein-Detsch I, Mueller E, Leeb T, Kehl A. Effects of cocoa genotypes on coat color, platelets and coagulation parameters in French Bulldogs. Genes. 2021;12(7):1092. doi:10.3390/genes12071092 (full text, Würzburg repository)
UC Davis Veterinary Genetics Laboratory. Brown (B locus) test. Accessed October 2026.
UC Davis Veterinary Genetics Laboratory. Cocoa test. Accessed October 2026.
UC Davis Veterinary Genetics Laboratory. Dilute (D locus) test. Accessed October 2026.
UC Davis Veterinary Genetics Laboratory. Coat Color Panel, French Bulldog. Accessed October 2026.
Embark Veterinary. Cocoa trait test added to Embark for Breeders. January 8, 2021. Accessed October 2026.
Coats and Colors. Cocoa. Accessed October 2026.
Moriello KA. Hereditary alopecia and hypotrichosis in animals. Merck Veterinary Manual. Full review February 2025. Accessed October 2026.

Breed Standards and Clubs

American Kennel Club. Official Standard of the French Bulldog. Approved April 10, 2018; effective June 5, 2018.
American Kennel Club. Official Standard of the French Bulldog. Approved June 10, 1991.
American Kennel Club. Conformation FAQ. Accessed October 2026.
French Bull Dog Club of America. Color clarification. July 2008.
French Bull Dog Club of America. No Fad Colors. Accessed October 2026.
The Royal Kennel Club (UK). French Bulldog breed standard. Accessed October 2026.
The Royal Kennel Club. Historic AGM and SGM for The Kennel Club as members vote for royal name change. June 12, 2024.
Fédération Cynologique Internationale. FCI Standard No. 101, French Bulldog. Published August 10, 2023.

Population Data

O’Neill DG, Baral L, Church DB, Brodbelt DC, Packer RMA. Demography and disorders of the French Bulldog population under primary veterinary care in the UK in 2013. Canine Genetics and Epidemiology. 2018;5:3. RVC repository

Price Sources (Advertised Prices, Checked October 2026)

Country Club Frenchies. Pricing. Breeder sales page.

Prices were checked on a seller’s website in October 2026 and can change. Links to DNA testing labs are for information; we don’t earn a commission from them. This article is educational and doesn’t replace your vet. If your Frenchie has unusual bleeding or bruising, call your vet.