---
title: "Kerotin Extensive Hair Thickening Spray — $34K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/kerotin-extensive-hair-thickening-spray"
last_updated: "2026-08-11T16:05:01.330Z"
locale: en
meta:
description: "Niche score 52/100 · $34K/yr market · 6K searches/yr. A concentrated shelf (top 5 take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $34K/yr market · 6K searches/yr. A concentrated shelf (top 5 take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Kerotin Extensive Hair Thickening Spray — $34K/yr Amazon US Niche (2026) - Flapen"
---
# **kerotin extensive hair thickening spray**
**Worth a look**
Shows low returns (0.6%), but a concentrated shelf (top 5 take 100% of clicks) keeps it on the watch list.
Market size 9Growth 67Conversion 96Competition 0Returns 97Price range 95Avg price 95Brand share 0Review moat 56Quality gap 87
**Returns**
**Incredible****0.6%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****13.6%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$44.62**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$27.18–$78.16**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Growth**
**Good****+46.5%**
90-day search growth — must beat 0% to launch
**Review moat**
**Good****1,240.4**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$34K**
$34K/yr · 6K searches
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, kerotin extensive hair thickening spray is a $34K/yr Amazon United States market (6K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Mar–Jul. Verdict: Worth a look — 52/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **kerotin extensive hair thickening spray market data**
- **Units sold / yr**
- **750–1K**
- avg 250–500/product
- **Revenue / yr**
- **$33K–$45K**
- units × avg price
- **Conversion rate**
- **13.6%**
- **Avg BSR**
- **#16,055**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **80%**
- **Out of stock**
- **2.6%**
- **Avg brand age**
- **77 months**
- **Avg seller age**
- **149 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**1 **▼falling
**Sellers**
**18**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- K Kerotin100% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +46.5% search growth over the last 90 days.
200150Spike '24Spike '25Prime Day '25Holiday '25Spike '26Prime Day '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Jul · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/kerotin-extensive-hair-thickening-spray/trend)
## **Top kerotin extensive hair thickening spray search terms**
- **kerotin extensive thickening treatment**5K/yr+58.7%15.4% conv. - **kerotin extensive hair thickening spray**205/yr-9.5%17.5% conv. - **keratin extensive thickening treatment**323/yr-54.5%20.0% conv. [**All search terms **](https://flapen.com/research/us/beauty-personal-care/kerotin-extensive-hair-thickening-spray/search-terms)
## **Top kerotin extensive hair thickening spray 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.
0%20%$7K40%$14K60%$20K80%$27K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 5 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Kerotin Extensive Thickening Treatment Spray for Fine and Thin Hair - Spray I Hair Diameter Booster and Heat Protectant. All-natural Cruelty and Alcohol-Free Made in the USA. (1)**K Kerotin**$29.84**4.1★1,333 rev](https://www.amazon.com/dp/B0921KYMZ7) [2**Kerotin Hair Growth Serum with Castor Oil for Hair Loss in Women DHT Blocker Promotes Scalp Care & Thicker Fuller Hair Thickening Drops Natural Sulfate & Cruelty Free Made in USA**K Kerotin**$27.18**3.9★2,011 rev](https://www.amazon.com/dp/B08KWM16VY) [3**Kerotin Hair Thickening Spray w/Keratin for Fine & Thin Hair Growth in Women Heat Protectant Repair Mist for Volume Body & Shine Diameter Booster Natural & Cruelty Free Made in USA - 3 Pack**K Kerotin**$78.16**4.2★75 rev](https://www.amazon.com/dp/B0B57QR38S) [4**Kerotin Hair Thickening Spray with Keratin for Fine & Thin Hair Growth in Women (2 pack) Heat Protectant Body & Shine Diameter Booster Natural Sulfate & Cruelty Free Made in USA**K Kerotin**$54.91**4.2★75 rev](https://www.amazon.com/dp/B0CL6VY8B3) [5**Kerotin Hair Growth Vitamins Biotin Supplement DHT Blocker Collagen Stimulator for Hair Loss Support Nail & Skin Care Includes Saw Palmetto Vitamin D3 & More - 60 Pills (1 Month Supply)**K Kerotin**$32.99**4.2★2,708 rev](https://www.amazon.com/dp/B072N3L1YF)
### **Newest**
by launch date
[**Kerotin Hair Thickening Spray with Keratin for Fine & Thin Hair Growth in Women (2 pack) Heat Protectant Body & Shine Diameter Booster Natural Sulfate & Cruelty Free Made in USA**K Kerotin**$54.91**75 rev2y ago](https://www.amazon.com/dp/B0CL6VY8B3) [**Kerotin Hair Thickening Spray w/Keratin for Fine & Thin Hair Growth in Women Heat Protectant Repair Mist for Volume Body & Shine Diameter Booster Natural & Cruelty Free Made in USA - 3 Pack**K Kerotin**$78.16**75 rev4y ago](https://www.amazon.com/dp/B0B57QR38S) [**Kerotin Extensive Thickening Treatment Spray for Fine and Thin Hair - Spray I Hair Diameter Booster and Heat Protectant. All-natural Cruelty and Alcohol-Free Made in the USA. (1)**K Kerotin**$29.84**1,333 rev5y ago](https://www.amazon.com/dp/B0921KYMZ7) [**Kerotin Hair Growth Serum with Castor Oil for Hair Loss in Women DHT Blocker Promotes Scalp Care & Thicker Fuller Hair Thickening Drops Natural Sulfate & Cruelty Free Made in USA**K Kerotin**$27.18**2,011 rev5y ago](https://www.amazon.com/dp/B08KWM16VY) [**Kerotin Hair Growth Vitamins Biotin Supplement DHT Blocker Collagen Stimulator for Hair Loss Support Nail & Skin Care Includes Saw Palmetto Vitamin D3 & More - 60 Pills (1 Month Supply)**K Kerotin**$32.99**2,708 rev9y ago](https://www.amazon.com/dp/B072N3L1YF)
### **Trending**
90-day click momentum
[**Kerotin Hair Thickening Spray with Keratin for Fine & Thin Hair Growth in Women (2 pack) Heat Protectant Body & Shine Diameter Booster Natural Sulfate & Cruelty Free Made in USA**K Kerotin**$54.91**4.2★**▲ 240%**](https://www.amazon.com/dp/B0CL6VY8B3) [**Kerotin Hair Growth Serum with Castor Oil for Hair Loss in Women DHT Blocker Promotes Scalp Care & Thicker Fuller Hair Thickening Drops Natural Sulfate & Cruelty Free Made in USA**K Kerotin**$27.18**3.9★**▲ 68%**](https://www.amazon.com/dp/B08KWM16VY) [**Kerotin Hair Growth Vitamins Biotin Supplement DHT Blocker Collagen Stimulator for Hair Loss Support Nail & Skin Care Includes Saw Palmetto Vitamin D3 & More - 60 Pills (1 Month Supply)**K Kerotin**$32.99**4.2★**▲ 33%**](https://www.amazon.com/dp/B072N3L1YF) [**Kerotin Extensive Thickening Treatment Spray for Fine and Thin Hair - Spray I Hair Diameter Booster and Heat Protectant. All-natural Cruelty and Alcohol-Free Made in the USA. (1)**K Kerotin**$29.84**4.1★**▼ 15%**](https://www.amazon.com/dp/B0921KYMZ7) [**Kerotin Hair Thickening Spray w/Keratin for Fine & Thin Hair Growth in Women Heat Protectant Repair Mist for Volume Body & Shine Diameter Booster Natural & Cruelty Free Made in USA - 3 Pack**K Kerotin**$78.16**4.2★**▼ 34%**](https://www.amazon.com/dp/B0B57QR38S)
## **What buyers say about kerotin extensive hair thickening spray**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Hair Growth**39%
*“They also help your nails grow so fast and strong”*
**Quality-Overall**32%
*“The quality is great”*
**Brightness/Shine/Glow**14%
*“It gives shine and fullness”*
**Ingredients-Overall**7%
*“new growth without the use of strong chemicals found in most other products”*
**Skin Health**4%
*“They even make my skin better”*
**Vitamin**4%
*“Best hair vitamin”*
### **What buyers complain about **
**Smell**50%
*“I wish it doesnt have fragrance”*
**Natural Ingredients**50%
*“Then its not natural”*
### **Top return reasons **
**Leak-Proof**24%
**Functionality-Overall**16%
**Oily/Greasy**10%
**Advertised Vs Actual Product**10%
**Suitability Straight Hair**7%
**Skin Health**7%
**Smell**7%
**Suitability Short Hair**5%
**Suitability Curly Hair**3%
**Adhesion/Stickiness**3%
## **Common questions**
- **Is kerotin extensive hair thickening spray profitable to sell on Amazon United States?**
- The niche generates $34K/yr across 5 tracked products. 90-day search growth is +46.5%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the kerotin extensive hair thickening spray niche?**
- 1 brands and 18 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in kerotin extensive hair thickening spray?**
- Top complaints mined from reviews: Smell, Natural Ingredients. The return rate is 0.6%.
- **When does demand for kerotin extensive hair thickening spray peak?**
- Demand peaks in Mar–Jul; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the kerotin extensive hair thickening spray niche?**
- Listings span $27.18–$78.16; the average listing price is $44.62 (sweet spot $15–$100). The average incumbent carries 1,240 reviews — the moat a new listing must climb.
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