Is biotin and collagen supplements profitable to sell on Amazon United States?

The niche generates $573K/yr across 10 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +9.8%. Flapen's verdict: Skip it (46/100).

How competitive is the biotin and collagen supplements niche?

4 brands and 66 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in biotin and collagen supplements?

Top complaints mined from reviews: Dosage, Taste-Overall, Functionality-Overall. The return rate is 0.0%.

When does demand for biotin and collagen supplements peak?

Demand peaks in Aug–Sep; the busiest month runs 1.8× the quietest.

What does it cost to enter the biotin and collagen supplements niche?

Listings span $5.99–$45.14; the average listing price is $21.35 (sweet spot $15–$100). The average incumbent carries 16,232 reviews — the moat a new listing must climb.

biotin and collagen supplements

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$21.35

avg listing price — sweet spot $15–$100

Price range

Great$5.99–$45.14

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Good6.2%

search→purchase rate — share of searches ending in a sale

Market size

Good$573K

$573K/yr · 434K searches

Growth

Okay+9.8%

90-day search growth — must beat 0% to launch

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad16,231.5

avg incumbent reviews — the moat a new listing must climb

Competition

Bad83%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, biotin and collagen supplements is a $573K/yr Amazon United States market (434K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug–Sep. Verdict: Skip it — 46/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

biotin and collagen supplements market data

Units sold / yr: 30K–40K; avg 1,500–2,000/product
Revenue / yr: $641K–$854K; units × avg price
Conversion rate: 6.2%
Avg BSR: #3,226
Page quality: 0%
Prime: 90%
Sponsored: 80%
Out of stock: 0.0%
Avg brand age: 53 months
Avg seller age: 136 days

Competition & brand share

The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 rising

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

83%

Top 20: 100%

Open market

Youtheory87%
NUTRAHARMONY6%
MCArthur4%
Nature's Bounty4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +9.8% search growth over the last 90 days.

Peak months: Aug, Sep · busiest ÷ quietest = 1.8×

Open Trend

Top biotin and collagen supplements search terms

youtheory collagen125K/yr +2.6%8.4% conv.
biotina max colageno36K/yr +134.1%0.5% conv.
youtheory58K/yr +11.6%1.4% conv.
collagen and biotin36K/yr +1.2%2.5% conv.
collagen biotin41K/yr -6.2%3.3% conv.
collagen youtheory20K/yr +8.5%8.8% conv.
youth theory collagen17K/yr +0.4%8.2% conv.
collagen with biotin16K/yr -10.7%2.1% conv.
you theory collagen for women11K/yr -22.7%10.5% conv.
youththeory collagen7K/yr +4.0%6.6% conv.

All search terms

Top biotin and collagen supplements products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Youtheory Collagen + Biotin - Advanced Collagen Supplement - with Hydrolyzed Peptides Vitamin C & Vitamin B - Supports Hair Growth Nail Health & Anti-Aging* - 390 Tablets

Youtheory$24.594.7★2,047 rev

Youtheory Advanced Collagen - 6 000 mg Hydrolyzed Collagen Peptides - Includes Antioxidants & Contains Vitamin C - Hair Growth Nails Joint Health & Bone Support* - 290 Tablets (48-Day Supply)

Youtheory$18.824.6★46,898 rev

Youtheory Concentrated Effect Collagen with Verisol - Collagen Peptides with Vitamins C & B - Supports Hair Nails Bones & Joints* - 180 Tablets (60-Day Supply)

Youtheory$24.294.6★289 rev

Youtheory Collagen Liquid - 5 000 mg Hydrolyzed Collagen Peptides - Supports Hair Nail Joint & Bone Health* - Berry Flavor - 1 oz Single Serve Packet Pack of 12

Youtheory$16.214.5★2,038 rev

Biotin | Collagen | Hyaluronic Acid | Keratin - Hair Growth & Strength Support Vitamins - Skin & Nails Supplement - Clinically Tested for Men & Women - 25000mcg Vitamins B1 B2 B3 B6 & B7 - 60 Caps

NUTRAHARMONY$26.494.5★18,756 rev

Newest

by launch date

Biotina Max Colageno Capsulas - Biotin & Collagen Complex with Vitamins Daily Beauty & Wellness Formula Hair & Skin Care Supplement - 60 Capsules

MCArthur$24.211 rev

1mo ago

Youtheory Concentrated Effect Collagen with Verisol - Collagen Peptides with Vitamins C & B - Supports Hair Nails Bones & Joints* - 180 Tablets (60-Day Supply)

Youtheory$24.29289 rev

1y ago

Biotin | Collagen | Hyaluronic Acid | Keratin - Hair Growth & Strength Support Vitamins - Skin & Nails Supplement - Clinically Tested for Men & Women - 25000mcg Vitamins B1 B2 B3 B6 & B7 - 60 Caps

NUTRAHARMONY$26.4918,756 rev

3y ago

Youtheory Collagen Liquid - 5 000 mg Hydrolyzed Collagen Peptides - Supports Hair Nail Joint & Bone Health* - Berry Flavor - 1 oz Single Serve Packet Pack of 12

Youtheory$16.212,038 rev

7y ago

Natures Bounty Optimal Solutions Hair Skin & Nails with Biotin and Collagen Citrus-Flavored Gummies Vitamin Supplement 2500 mcg 80 Ct 40 Total Servings

Nature's Bounty$5.9941,085 rev

8y ago

What buyers say about biotin and collagen supplements

What buyers praise and complain about, mined from review topics.

What buyers love

Hair Growth17%

“Amazing Hair Growth”

Quality-Overall15%

“Good quality, no side effects, no problems”

Taste-Overall11%

“Great Taste”

Vitamin8%

“Great vitamin”

Value For Money6%

“Good Value”

Skin Health5%

“skin hydration”

Ease Of Chewing/Swallowing4%

“Thankfully I don't have issues swallowing”

Efficiency4%

“Effective”

Advertised Vs Actual Product4%

“REALLY WORKS AS IT SAYS”

Ease Of Use3%

“Easy to take”

What buyers complain about

Dosage12%

“I am sure the dosage isnt correct”

Taste-Overall11%

“Horrible after taste”

Functionality-Overall6%

“Not Effective”

Size-Overall6%

“Shorty”

Allergies4%

“Allergic”

Hair Related4%

“uncertain about my hair”

Smell3%

“it smelled like ammonia”

Value For Money3%

“not worth the price”

Ease Of Chewing/Swallowing3%

“The chewables are not as effective”

Ease Of Use2%

“hard to get out”

Top return reasons

Ingredients-Overall22%

Size-Overall17%

Acid Regulator/Stomach Ache Relief11%

Value For Money11%

Vitamin6%

Dosage6%

Satisfaction/Pleasure6%