fingernail repair
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Conversion
Incredible12.1%search→purchase rate — share of searches ending in a sale
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Market size
Okay$242K$242K/yr · 185K searches
Price range
Okay$4.51–$22.63cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay$10.83avg listing price — sweet spot $15–$100
Growth
Bad-3.6%90-day search growth — must beat 0% to launch
Review moat
Bad26,227.25avg incumbent reviews — the moat a new listing must climb
Competition
Bad100%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, fingernail repair is a $242K/yr Amazon United States market (185K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 42/100.
Data updated Jul 20, 2026 · scored weekly · How we score niches
fingernail repair market data
- Units sold / yr
- 15K–20K
- avg 3,000–4,000/product
- Revenue / yr
- $162K–$217K
- units × avg price
- Conversion rate
- 12.1%
- Avg BSR
- #7
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 64 months
- Avg seller age
- 157 days
Competition & brand share
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.Brands
3 flat
Sellers
9
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
100%
Top 20: 100%
Open market
0%
- OPI71%
- Nail-Aid23%
- Onyx Professional6%
Demand
Weekly Amazon search volume, last 41 weeks — -3.6% search growth over the last 90 days.Top fingernail repair search terms
- opi repair mode76K/yr
- opi repair mode bond building nail serum19K/yr
- nail aid biotin ultimate strength14K/yr
- fingernail repair14K/yr
- biotin nail polish10K/yr
- opi nail repair15K/yr
- biotin nail strengthener12K/yr
- finger nail repair6K/yr
- nail aid biotin5K/yr
- opi nail repair mode5K/yr
Top fingernail repair 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.
All 4 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
OPI Repair Mode Bond Building Nail Serum | Keratin Protein Nail Strengthening Treatment | For Stronger Nails & Nail Growth
OPI$22.634.2★7,288 rev
Nail-Aid Biotin Ultimate Strength Nail Strengthener Vitamin B7 Treatment for Weak Thin & Peeling Nails Helps Grow Stronger Harder Longer Natural Nails in 3 Days
Nail-Aid$4.514.3★14,940 rev
Onyx Professional Hard as Hoof Nail Strengthening Cream Island Coconut Scent - Nail Growth and Conditioning Cuticle Cream Stops Splits Chips Cracks & Strengthens Nails 1 oz
Onyx Professional$9.384.4★80,870 rev
Nail-Aid - 5-in-1 Damaged Nails Multi-Repair for Fingernails or Toenails
Nail-Aid$6.804.1★1,811 rev
Newest
by launch dateOPI Repair Mode Bond Building Nail Serum | Keratin Protein Nail Strengthening Treatment | For Stronger Nails & Nail Growth
OPI$22.637,288 rev
Nail-Aid - 5-in-1 Damaged Nails Multi-Repair for Fingernails or Toenails
Nail-Aid$6.801,811 rev
Nail-Aid Biotin Ultimate Strength Nail Strengthener Vitamin B7 Treatment for Weak Thin & Peeling Nails Helps Grow Stronger Harder Longer Natural Nails in 3 Days
Nail-Aid$4.5114,940 rev
Onyx Professional Hard as Hoof Nail Strengthening Cream Island Coconut Scent - Nail Growth and Conditioning Cuticle Cream Stops Splits Chips Cracks & Strengthens Nails 1 oz
Onyx Professional$9.3880,870 rev
Trending
90-day click momentumOPI Repair Mode Bond Building Nail Serum | Keratin Protein Nail Strengthening Treatment | For Stronger Nails & Nail Growth
OPI$22.634.2★
Nail-Aid Biotin Ultimate Strength Nail Strengthener Vitamin B7 Treatment for Weak Thin & Peeling Nails Helps Grow Stronger Harder Longer Natural Nails in 3 Days
Nail-Aid$4.514.3★
Onyx Professional Hard as Hoof Nail Strengthening Cream Island Coconut Scent - Nail Growth and Conditioning Cuticle Cream Stops Splits Chips Cracks & Strengthens Nails 1 oz
Onyx Professional$9.384.4★
Nail-Aid - 5-in-1 Damaged Nails Multi-Repair for Fingernails or Toenails
Nail-Aid$6.804.1★
What buyers say about fingernail repair
What buyers praise and complain about, mined from review topics.What buyers love
“Smells like summer”
“The reviews were extremely helpful”
“Feels nice”
“Great hydration,”
“Does the job”
“Worth the money”
“as advertised”
“My nails are growing great”
“Easy to use”
“Its stays on”
What buyers complain about
“Did not work”
“Overpowering scent”
“are hard to keep moist”
“No improvement”
“Waste of money”
“I had really brittle”
“Hard as nails”
“The liquid is very thin”
“breaking as much”
“It leaks”
Top return reasons
Common questions
- Is fingernail repair profitable to sell on Amazon United States?
- The niche generates $242K/yr across 4 tracked products. 90-day search growth is -3.6%. Flapen's verdict: Skip it (42/100).
- How competitive is the fingernail repair niche?
- 3 brands and 9 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in fingernail repair?
- Top complaints mined from reviews: Functionality-Overall, Smell, Moist/Dry. The return rate is 0.5%.
- What does it cost to enter the fingernail repair niche?
- Listings span $4.51–$22.63; the average listing price is $10.83 (sweet spot $15–$100). The average incumbent carries 26,227 reviews — the moat a new listing must climb.