nail serum
Worth a lookShows low returns (0.3%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Conversion
Great8.6%search→purchase rate — share of searches ending in a sale
Avg price
Great$15.38avg listing price — sweet spot $15–$100
Market size
Great$866K$866K/yr · 658K searches
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Price range
Okay$3.26–$22.63cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+8.9%90-day search growth — must beat 0% to launch
Review moat
Bad21,420.44avg incumbent reviews — the moat a new listing must climb
Competition
Bad87%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, nail serum is a $866K/yr Amazon United States market (658K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 50/100.
Data updated Jul 20, 2026 · scored weekly · How we score niches
nail serum market data
- Units sold / yr
- 40K–50K
- avg 4,000–5,000/product
- Revenue / yr
- $615K–$769K
- units × avg price
- Conversion rate
- 8.6%
- Avg BSR
- #5
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 70 months
- Avg seller age
- 160 days
Competition & brand share
The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.Brands
3 rising
Sellers
30
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
87%
Top 20: 100%
Open market
0%
- OPI95%
- Onyx Professional3%
- Sally Hansen2%
- Open — no brand owns it (0%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +8.9% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top nail serum search terms
- opi nail envy324K/yr
- opi nail strengthener92K/yr
- nail envy68K/yr
- opi nail envy original nail strengthener16K/yr
- nail envy opi nail strengthener extra strength33K/yr
- opi nail envy strengthener43K/yr
- opi nail envy nail strengthener15K/yr
- opi nail envy original10K/yr
- opi nail strengthener and growth11K/yr
- opi strengthening nail polish10K/yr
Top nail serum 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 9 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
OPI Nail Envy Nail Strengthener Clear | Strengthening Nail Polish Treatment | For Weak & Thin Nails
OPI$18.374.2★14,905 rev
OPI Nail Envy Strengthener Pink to Envy | Sheer Soft Pink Crme Strengthening Nail Polish Treatment | Strengthen Weak & Thin Nails
OPI$17.874.2★14,905 rev
OPI Natural Nail Strengthener | Nail Strengthener & Base Coat | Strengthens Nails Vitamin A & E Vegan Formula
OPI$11.734.5★3,155 rev
OPI Nail Envy Strengthener Bubble Bath | Sheer Nude Pink Crme Strengthening Nail Polish Treatment | For Weak & Thin Nails
OPI$18.064.2★14,905 rev
OPI Nail Envy Strengthener Alpine Snow | Opaque Soft White Crme Strengthening Nail Polish Treatment | For Weak & Thin Nails
OPI$18.954.2★14,905 rev
Newest
by launch dateOPI Nail Envy Nail Strengthener Clear | Strengthening Nail Polish Treatment | For Weak & Thin Nails
OPI$18.3714,905 rev
OPI Nail Envy Strengthener Pink to Envy | Sheer Soft Pink Crme Strengthening Nail Polish Treatment | Strengthen Weak & Thin Nails
OPI$17.8714,905 rev
OPI Natural Nail Strengthener | Nail Strengthener & Base Coat | Strengthens Nails Vitamin A & E Vegan Formula
OPI$11.733,155 rev
OPI Nail Envy Strengthener Bubble Bath | Sheer Nude Pink Crme Strengthening Nail Polish Treatment | For Weak & Thin Nails
OPI$18.0614,905 rev
OPI Nail Envy Strengthener Alpine Snow | Opaque Soft White Crme Strengthening Nail Polish Treatment | For Weak & Thin Nails
OPI$18.9514,905 rev
Trending
90-day click momentumOPI Nail Envy Strengthener Pink to Envy | Sheer Soft Pink Crme Strengthening Nail Polish Treatment | Strengthen Weak & Thin Nails
OPI$17.874.2★
OPI Nail Envy Nail Strengthener Clear | Strengthening Nail Polish Treatment | For Weak & Thin Nails
OPI$18.374.2★
OPI Nail Envy Strengthener Alpine Snow | Opaque Soft White Crme Strengthening Nail Polish Treatment | For Weak & Thin Nails
OPI$18.954.2★
Sally Hansen Advanced Hard as Nails Clear Nail Strengthener Includes Retinol and Nylon Nourishing
Sally Hansen$3.264.6★
OPI Natural Nail Strengthener | Nail Strengthener & Base Coat | Strengthens Nails Vitamin A & E Vegan Formula
OPI$11.734.5★
What buyers say about nail serum
What buyers praise and complain about, mined from review topics.What buyers love
“Smells like summer”
“Excellent product”
“Good value”
“Great hydration,”
“Feels nice”
“Seems to be working well”
“As advertised”
“Have used for years”
“the results are amazing”
“Easy to use”
What buyers complain about
“Did not work”
“Expensive”
“Awful smell”
“takes a bit longer to dry also”
“breaking as much”
“Color not accurate”
“my nails are harder”
“not strength”
“Very thick”
“No improvement”
Top return reasons
Common questions
- Is nail serum profitable to sell on Amazon United States?
- The niche generates $866K/yr across 9 tracked products. 90-day search growth is +8.9%. Flapen's verdict: Worth a look (50/100).
- How competitive is the nail serum niche?
- 3 brands and 30 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in nail serum?
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Smell. The return rate is 0.3%.
- When does demand for nail serum peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the nail serum niche?
- Listings span $3.26–$22.63; the average listing price is $15.38 (sweet spot $15–$100). The average incumbent carries 21,420 reviews — the moat a new listing must climb.