---
title: "Pentadecanoic Acid — $2.1M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/pentadecanoic-acid"
last_updated: "2026-08-10T03:55:37.296Z"
locale: en
meta:
description: "Niche score 66/100 · $2.1M/yr market · 742K searches/yr · $57.22 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 66/100 · $2.1M/yr market · 742K searches/yr · $57.22 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "Pentadecanoic Acid — $2.1M/yr Amazon US Niche (2026) - Flapen"
---
# **pentadecanoic acid**
**Launch it**
A $2.1M/yr market growing +104.2% this quarter with returns at 0.0% — clears our launch bar.
Market size 95Growth 93Conversion 58Competition 12Returns 100Price range 65Avg price 91Brand share 23Review moat 92Quality gap 58
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Market size**
**Incredible****$2.1M**
$2.1M/yr · 742K searches
**Growth**
**Great****+104.2%**
90-day search growth — must beat 0% to launch
**Review moat**
**Great****170**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Great****$57.22**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$24.46–$140.77**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****5.0%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****91%**
top-5 brand share — brand-locked demand
**Competition**
**Bad****86%**
top-5 click share — a locked-up shelf
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, pentadecanoic acid is a $2.1M/yr Amazon United States market (742K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Jan–Feb–Apr–May–Jun. Verdict: Launch it — 66/100.
Data updated Jul 26, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **pentadecanoic acid market data**
- **Units sold / yr**
- **30K–40K**
- avg 4,000–5,000/product
- **Revenue / yr**
- **$1.7M–$2.3M**
- units × avg price
- **Conversion rate**
- **5.0%**
- **Avg BSR**
- **#216**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **62 months**
- **Avg seller age**
- **153 days**
## **Competition & brand share**
The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **▲rising
**Sellers**
**10**
**Top-5 brand share**
**91%**
Top 20: 100%
**Top-5 click share**
**86%**
Top 20: 100%
**Open market**
**4%**
- Fatty1562% - Stay-Well Naturals10% - minyang7% - Samareniq6% - DTORUNI5% - pucges5% - Open — no brand owns it (1 brand, 4%)
## **Demand & seasonality**
Weekly Amazon search volume, last 69 weeks — +104.2% search growth over the last 90 days.
30K20KSpike '25Spike '26 seasonAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jan, Feb, Apr, May, Jun · busiest ÷ quietest = 12.5×
[**Open Trend **](https://flapen.com/research/us/health-household/pentadecanoic-acid/trend)
## **Top pentadecanoic acid search terms**
- **fatty 15**266K/yr+139.6%4.6% conv. - **fatty 15 supplement**173K/yr+112.4%4.6% conv. - **fatty15**54K/yr+126.6%3.0% conv. - **pentadecanoic acid**50K/yr+67.7%3.6% conv. - **c15 fatty acid supplement**44K/yr+41.7%2.9% conv. - **fatty 15 supplement capsules**19K/yr+327.1%4.9% conv. - **c15**28K/yr+52.8%2.1% conv. - **pentadecanoic acid supplement**23K/yr+45.0%3.7% conv. - **fatty15 supplement**16K/yr+32.7%3.7% conv. - **c15 0 fatty acid supplement**13K/yr+62.1%3.0% conv. [**All search terms **](https://flapen.com/research/us/health-household/pentadecanoic-acid/search-terms)
## **Top pentadecanoic acid 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%15%$318K30%$636K45%$955K60%$1.3M101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Fatty15 C15:0 Pentadecanoic Acid Healthy Aging Supplement - 3 Month Supply**Fatty15**$140.77**4.3★796 rev](https://www.amazon.com/dp/B0DNBL1D2J) [2**C15:0 Pentadecanoic Acid Supplement | Longevity Cellular & Membrane Support Micro-Granule Enhanced Absorption Phosphatidylcholine L-Carnitine Ubiquinol CoQ10 & Tocotrienols 120ct**Stay-Well Naturals**$47.14**4.5★77 rev](https://www.amazon.com/dp/B0GKPTBN59) [3**Fatty15 C15:0 Pentadecanoic Acid Healthy Aging Gummies - 60 Vegan Gummies**Fatty15**$75.80**4.6★61 rev](https://www.amazon.com/dp/B0GL4HZ93G) [4**Pentadecanoic Acid Capsules C15:0 Fatty Acid Supplement Pure Plant-Based Essential Fatty Acid - 90 Vegan Capsules (1)**minyang**$49.92**4.2★47 rev](https://www.amazon.com/dp/B0FXWW1PGQ) [5**Samareniq Pentadecanoic Acid Supplement | 300mg C15:0 Formula | High-Altitude Grass-Fed Sheep Milk Source | Blister-Sealed Capsules (1 Pack)**Samareniq**$24.46**4.7★135 rev](https://www.amazon.com/dp/B0G6CW2LZG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**DTORUNI Pentadecanoic Acid Liposome Supplement C15:0 Supplement Cellular Membrane Support with L-Carnitine & Ubiquinol CoQ10-90 Capsules**DTORUNI**$38.50**54 rev3mo ago](https://www.amazon.com/dp/B0GVSBTL8Y) [**C15:0 Pentadecanoic Acid Supplement | Longevity Cellular & Membrane Support Micro-Granule Enhanced Absorption Phosphatidylcholine L-Carnitine Ubiquinol CoQ10 & Tocotrienols 120ct**Stay-Well Naturals**$47.14**77 rev4mo ago](https://www.amazon.com/dp/B0GKPTBN59) [**Pentadecanoic Acid C15:0 Fatty Acid Supplement - 3X Omega 3 Fish Oil Healthy Aging Supplement for Gut Health Liver Support 90 Vegan Capsules**pucges**$49.98**39 rev5mo ago](https://www.amazon.com/dp/B0FWRP43YS) [**Fatty15 C15:0 Pentadecanoic Acid Healthy Aging Gummies - 60 Vegan Gummies**Fatty15**$75.80**61 rev5mo ago](https://www.amazon.com/dp/B0GL4HZ93G) [**Samareniq Pentadecanoic Acid Supplement | 300mg C15:0 Formula | High-Altitude Grass-Fed Sheep Milk Source | Blister-Sealed Capsules (1 Pack)**Samareniq**$24.46**135 rev7mo ago](https://www.amazon.com/dp/B0G6CW2LZG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**DTORUNI Pentadecanoic Acid Liposome Supplement C15:0 Supplement Cellular Membrane Support with L-Carnitine & Ubiquinol CoQ10-90 Capsules**DTORUNI**$38.50**4.6★**▲ 111%**](https://www.amazon.com/dp/B0GVSBTL8Y) [**Fatty15 C15:0 Pentadecanoic Acid Healthy Aging Gummies - 60 Vegan Gummies**Fatty15**$75.80**4.6★**▲ 108%**](https://www.amazon.com/dp/B0GL4HZ93G) [**C15:0 Pentadecanoic Acid Supplement | Longevity Cellular & Membrane Support Micro-Granule Enhanced Absorption Phosphatidylcholine L-Carnitine Ubiquinol CoQ10 & Tocotrienols 120ct**Stay-Well Naturals**$47.14**4.5★**▲ 100%**](https://www.amazon.com/dp/B0GKPTBN59) [**Samareniq Pentadecanoic Acid Supplement | 300mg C15:0 Formula | High-Altitude Grass-Fed Sheep Milk Source | Blister-Sealed Capsules (1 Pack)**Samareniq**$24.46**4.7★**▲ 70%**](https://www.amazon.com/dp/B0G6CW2LZG) [**DNOUHN Pentadecanoic Acid Pentadecanoic Acid Formula Supplement Sourced from High-Altitude Sheep Milk 60 Capsules**DNOUHN**$31.17**4.1★**— 0%**](https://www.amazon.com/dp/B0FXWBN35L)
**~~View all trending →~~**
## **What buyers say about pentadecanoic acid**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**12%
*“feels well made”*
**Value For Money**8%
*“Good value”*
**Ease Of Use**7%
*“so this felt like an easy switch for me”*
**Vitamin**7%
*“Great addition to my current supplements”*
**Energy Level**7%
*“I noticed improved energy levels”*
**Nutritional Content**6%
*“it has been my favorite nutritional supplement”*
**Ingredients-Overall**5%
*“Effective ingredients”*
**Side Effects**5%
*“I stopped taking fish oils when I started this product so I could feel the effects more clearly”*
**Taste-Overall**5%
*“the taste makes it noticeably easier to stay consistent”*
**Ease Of Chewing/Swallowing**4%
*“They are very soft and chewy”*
### **What buyers complain about **
**Value For Money**17%
*“Waste of money”*
**Functionality-Overall**5%
*“No results”*
**Advertised Vs Actual Product**5%
*“Clearly not marked made in USA as indicated in the product description and pictures”*
**Dosage**5%
*“because they're notoriously misleading in dosage per gummy”*
**Certifications**3%
*“Not certified”*
**Taste-Overall**3%
*“The aftertaste is unpleasant”*
**Side Effects**2%
*“I started having some side effects”*
**Allergies**2%
*“I had an allergic reaction”*
**Vegan/Organic**2%
*“Definitely not as pure as advertised”*
**Energy Level**2%
*“Not a real boost of energy for me”*
### **Top return reasons **
**Oily/Greasy**50%
**Ingredients-Overall**50%
## **Common questions**
- **Is pentadecanoic acid profitable to sell on Amazon United States?**
- The niche generates $2.1M/yr across 8 tracked products. 7 of 7 products launched in the last 360 days are still selling. 90-day search growth is +104.2%. Flapen's verdict: Launch it (66/100).
- **How competitive is the pentadecanoic acid niche?**
- 7 brands and 10 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 91% of demand.
- **What do buyers complain about in pentadecanoic acid?**
- Top complaints mined from reviews: Value For Money, Functionality-Overall, Advertised Vs Actual Product. The return rate is 0.0%.
- **When does demand for pentadecanoic acid peak?**
- Demand peaks in Jan–Feb–Apr–May–Jun; the busiest month runs 12.5× the quietest.
- **What does it cost to enter the pentadecanoic acid niche?**
- Listings span $24.46–$140.77; the average listing price is $57.22 (sweet spot $15–$100). The average incumbent carries 170 reviews — the moat a new listing must climb.
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