hair smoothing serum
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Avg price
Great$18.48avg listing price — sweet spot $15–$100
Price range
Great$7.78–$39.45cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$836K$836K/yr · 806K searches
Conversion
Good5.6%search→purchase rate — share of searches ending in a sale
Growth
Okay+10.9%90-day search growth — must beat 0% to launch
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
Review moat
Bad6,825.81avg incumbent reviews — the moat a new listing must climb
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, hair smoothing serum is a $836K/yr Amazon United States market (806K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 49/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
hair smoothing serum market data
- Units sold / yr
- 60K–80K
- avg 4,000–5,000/product
- Revenue / yr
- $1.1M–$1.5M
- units × avg price
- Conversion rate
- 5.6%
- Avg BSR
- #225
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 69%
- Out of stock
- 0.0%
- Avg brand age
- 67 months
- Avg seller age
- 129 days
Competition & brand share
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.Brands
5 rising
Sellers
39
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
70%
Top 20: 100%
Open market
0%
- Paul Mitchell73%
- Dove20%
- L'Oreal Paris3%
- KÉRASTASE2%
- Wella Professionals2%
- Open — no brand owns it (0%)
Demand
Weekly Amazon search volume, last 32 weeks — +10.9% search growth over the last 90 days.Top hair smoothing serum search terms
- paul mitchell super skinny serum359K/yr
- dove hair serum53K/yr
- overnight hair serum44K/yr
- hair smoothing serum40K/yr
- dove hair oil37K/yr
- super skinny serum35K/yr
- paul mitchell serum24K/yr
- paul mitchell skinny serum26K/yr
- curly hair serum23K/yr
- dove oil19K/yr
Top hair smoothing 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 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Paul Mitchell Super Skinny Serum Blowout Primer Speeds Up Drying Time Humidity Resistant For All Hair Types 5.1 fl. oz
Paul Mitchell$27.224.7★17,599 rev
Paul Mitchell Super Skinny Serum Blowout Primer Speeds Up Drying Time Humidity Resistant For All Hair Types 8.5 fl oz
Paul Mitchell$37.234.7★17,599 rev
Dove Intensive Repair Amino Serum for Damaged Hair with Bio-Protein Care Technology 3.3 oz
Dove$9.354.6★1,540 rev
Paul Mitchell Super Skinny Serum Speeds Up Drying Time Humidity Resistant For Frizzy Hair
Paul Mitchell$12.694.4★1,797 rev
Paul Mitchell Super Skinny Serum Speeds Up Drying Time Humidity Resistant For Frizzy Hair 8.5 fl. oz
Paul Mitchell$39.454.8★14,287 rev
Newest
by launch date
Dove Damage Therapy Defense Bi-Phase Serum + Oil 1 ct UV Repair & Glow for 70 Hour Hair Protection with Ferulic Serum 3.9 fl oz
Dove$9.19288 rev
Dove Damage Therapy Intensive Repair with Amino Serum Bi-Phase Serum + Oil Hair Spray for Shine Frizz Control and Split Ends 3.9 oz
Dove$9.38730 rev
Kerastase Nutritive 8H Magic Night Serum - Overnight Treatment for Dry Hair Enhances Shine With Plant-Based Proteins 1.01 Fl Oz Travel Size
KÉRASTASE$30.999,434 rev
Paul Mitchell Clear Smoothing Serum Blowout Primer Fragrance Free For Sensitive Scalp + Skin 0.85 fl oz
Paul Mitchell$11.56221 rev
Wella Professionals ULTIMATE REPAIR Night Hair Serum | Protection Against Night Stressors for All Hair Types | 1 Fl Oz - Packaging May Vary
Wella Professionals$20.88569 rev
Trending
90-day click momentumPaul Mitchell Super Skinny Serum Speeds Up Drying Time Humidity Resistant For Frizzy Hair
Paul Mitchell$12.694.4★
Paul Mitchell Super Skinny Serum Blowout Primer Speeds Up Drying Time Humidity Resistant For All Hair Types 8.5 fl oz
Paul Mitchell$37.234.7★
Paul Mitchell Clear Smoothing Serum Blowout Primer Fragrance Free For Sensitive Scalp + Skin 0.85 fl oz
Paul Mitchell$11.564.4★
Dove Damage Therapy Defense Bi-Phase Serum + Oil 1 ct UV Repair & Glow for 70 Hour Hair Protection with Ferulic Serum 3.9 fl oz
Dove$9.194.4★
Paul Mitchell Super Skinny Serum Speeds Up Drying Time Humidity Resistant For Frizzy Hair 8.5 fl. oz
Paul Mitchell$39.454.8★
What buyers say about hair smoothing serum
What buyers praise and complain about, mined from review topics.What buyers love
“The fragrance is great”
“Excellent product”
“Soft and smooth”
“Very moisturizing”
“Worth the money”
“It leaves my hair soft”
“perfect for my hair type”
“gives hair shine”
“this serum is super lightweight”
“Awesome this gave my hair so much volume”
What buyers complain about
“Bad smell”
“expensive”
“Does not hydrate”
“it looked greasy”
“Leaky bottle”
“It didn't work for my hair”
“Small bottle,”
“Does not work on My hair”
“Product is used”
“Didn't work for me”
Top return reasons
Common questions
- Is hair smoothing serum profitable to sell on Amazon United States?
- The niche generates $836K/yr across 16 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +10.9%. Flapen's verdict: Skip it (49/100).
- How competitive is the hair smoothing serum niche?
- 5 brands and 39 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in hair smoothing serum?
- Top complaints mined from reviews: Smell, Value For Money, Moist/Dry. The return rate is 0.8%.
- What does it cost to enter the hair smoothing serum niche?
- Listings span $7.78–$39.45; the average listing price is $18.48 (sweet spot $15–$100). The average incumbent carries 6,826 reviews — the moat a new listing must climb.