---
title: "Ps100 — $627K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/ps100"
last_updated: "2026-08-06T05:37:46.950Z"
locale: en
meta:
description: "Niche score 64/100 · $627K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 64/100 · $627K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Ps100 — $627K/yr Amazon US Niche (2026) - Flapen"
---
# **ps100**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 65Growth 19Conversion 90Competition 52Returns 100Price range 95Avg price 95Brand share 75Review moat 64Quality gap 40
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$32.69**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$14.75–$79.26**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****10.6%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Great****60%**
top-5 brand share — no brand owns this niche
**Market size**
**Good****$627K**
$627K/yr · 180K searches
**Review moat**
**Good****940.62**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****54%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-11.2%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, ps100 is a $627K/yr Amazon United States market (180K searches/yr). The top 5 brands hold 60% of demand. Demand peaks in Jan–Feb–Dec. Verdict: Worth a look — 64/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ps100 market data**
- **Units sold / yr**
- **20K–25K**
- avg 500–750/product
- **Revenue / yr**
- **$654K–$817K**
- units × avg price
- **Conversion rate**
- **10.6%**
- **Avg BSR**
- **#1,360**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **67%**
- **Out of stock**
- **3.7%**
- **Avg brand age**
- **72 months**
- **Avg seller age**
- **167 days**
## **Competition & brand share**
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▼falling
**Sellers**
**493**
**Top-5 brand share**
**60%**
Top 20: 92%
**Top-5 click share**
**54%**
Top 20: 99%
**Open market**
**32%**
- Double Wood Supplements21% - NOW Foods12% - Nutricost11% - Toniiq8% - Jarrow Formulas8% - --8%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -11.2% search growth over the last 90 days.
10K6KSpike '24Prime Day '25Black Friday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb, Dec · busiest ÷ quietest = 3.2×
[**Open Trend **](https://flapen.com/research/us/health-household/ps100/trend)
## **Top ps100 search terms**
- **phosphatidylserine supplement**103K/yr-11.4%8.1% conv. - **ps100**17K/yr+12.0%9.7% conv. - **phosphatidylserine 100mg**18K/yr-21.2%8.8% conv. - **phosphatidylserine 300mg**17K/yr-35.0%10.4% conv. - **phosphatidylserine powder**9K/yr+10.2%2.3% conv. - **phosphatidylserine 500mg**5K/yr+16.5%7.8% conv. - **ps 100**4K/yr+3.0%9.5% conv. - **phosphatidyl**6K/yr-13.7%10.2% conv. [**All search terms **](https://flapen.com/research/us/health-household/ps100/search-terms)
## **Top ps100 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%10%$63K20%$125K30%$188K40%$251K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 21 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**PhosphatidylSerine Supplement 300mg Per Serving 120 Capsules (Phosphatidyl Serine Complex) by Double Wood**Double Wood Supplements**$19.76**4.5★6,095 rev](https://www.amazon.com/dp/B079YF1K1B) [2**Nutricost Phosphatidylserine (400mg) 120 Capsules Gluten Free**Nutricost**$23.66**4.5★1,278 rev](https://www.amazon.com/dp/B08XYDDXDC) [3**Toniiq Phosphatidylserine - 400mg Formula - Worlds First 50% Purity - Highest Purity in the US - Soy Free Phosphatidylserine Supplement - 90 Veggie Capsules**Toniiq**$24.39**4.6★1,422 rev](https://www.amazon.com/dp/B08LF5G6J1) [4**Phosphatidylserine Supplement 400mg Serving 240 Capsules Soy Free Sunflower Lecithin Source**--**$24.17**4.6★1,348 rev](https://www.amazon.com/dp/B0971RLCR2) [5**THORNE - Phosphatidylserine - Supports Healthy Brain Function Memory & Focus - Helps Regulate Cortisol During Stress* - Third-Party Certified - Gluten-Free Dairy-Free - 60 Capsules**THORNE**$66.37**4.5★273 rev](https://www.amazon.com/dp/B000FGZG4O)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Micro Ingredients Phosphatidylserine 600 mg Per Serving 240 Capsules | Soy Free Phosphatidylserine Supplement with Choline Lions Mane Ginkgo & Omega-3 | Non-GMO Gluten Free**Micro Ingredients**$21.81**22 rev6mo ago](https://www.amazon.com/dp/B0GDS4HHYZ) [**Micro Ingredients Lions Mane+ with Omega-3 EPA DHA & Phosphatidylserine 240 Softgels with MCT Oil for Better Absorption Fruiting Body & Mycelium Superfood Mushroom Extract Lemon Flavored**Micro Ingredients**$20.94**123 rev1y ago](https://www.amazon.com/dp/B0FJ46RC8P) [**ML Naturals Phosphatidyl Serine 200mg (Per Serving) 120 Vegetable Capsules Non-GMO Supports Memory & Brain Function**ML Naturals**$14.75**181 rev3y ago](https://www.amazon.com/dp/B0BW51QL8M) [**BulkSupplements.com Phosphatidylserine Capsules - Phosphatidylserine Supplement - Gluten Free 1 Capsule per Serving (60mg) 240 Capsules (Pack of 1)**BulkSupplements**$24.26**86 rev3y ago](https://www.amazon.com/dp/B0BB8D4ND9) [**NOW Foods Supplements Soy-Free Phosphatidyl Serine (150mg) Brain Health* 60 Veg Capsules**NOW Foods**$26.51**392 rev4y ago](https://www.amazon.com/dp/B09MSPXCMT)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Micro Ingredients Phosphatidylserine 600 mg Per Serving 240 Capsules | Soy Free Phosphatidylserine Supplement with Choline Lions Mane Ginkgo & Omega-3 | Non-GMO Gluten Free**Micro Ingredients**$21.81**4.6★**▲ 274%**](https://www.amazon.com/dp/B0GDS4HHYZ) [**BulkSupplements.com Phosphatidylserine Capsules - Phosphatidylserine Supplement - Gluten Free 1 Capsule per Serving (60mg) 240 Capsules (Pack of 1)**BulkSupplements**$24.26**4.3★**▲ 41%**](https://www.amazon.com/dp/B0BB8D4ND9) [**NOW Foods Supplements Phosphatidyl Serine 100 mg with Phospholipid compound derived from Soy Lecithin 60 Veg Capsules**NOW Foods**$20.47**4.5★**▲ 32%**](https://www.amazon.com/dp/B0013OUQW4) [**Jarrow Formulas PS100 Phosphatidylserine 100mg Dietary Supplement for Brain Health and Cognitive Function Support 120 Softgels Up to a 40-120 Day Supply**Jarrow Formulas**$49.53**4.3★**▲ 26%**](https://www.amazon.com/dp/B0758JJPSG) [**Toniiq Phosphatidylserine - 400mg Formula - Worlds First 50% Purity - Highest Purity in the US - Soy Free Phosphatidylserine Supplement - 90 Veggie Capsules**Toniiq**$24.39**4.6★**▲ 20%**](https://www.amazon.com/dp/B08LF5G6J1)
**~~View all trending →~~**
## **What buyers say about ps100**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**14%
*“the quality of its supporting ingredients”*
**Focus Enhancement**12%
*“helping you focus”*
**Sleep Quality**11%
*“Helped so much with sleep quality”*
**Value For Money**8%
*“Great deal for the money”*
**Vitamin**7%
*“complimented the other vitamins that I am taking at this time”*
**Stress/Anxiety**6%
*“Good for stress and anxiety”*
**Ingredients-Overall**5%
*“The pills seem to be made of good quality ingredients”*
**Ease Of Chewing/Swallowing**4%
*“not difficult for me to swallow”*
**Advertised Vs Actual Product**3%
*“As advertised”*
**Dosage**3%
*“Good dose /size”*
### **What buyers complain about **
**Dosage**11%
*“Extremely under dosed”*
**Ingredients-Overall**8%
*“Active ingredient comes from freaking soy”*
**Sleep Quality**6%
*“This supplement did NOTHING to help me sleep”*
**Advertised Vs Actual Product**5%
*“False advertising - this product does not work”*
**Smell**5%
*“Unpleasant odor”*
**Functionality-Overall**5%
*“Didn't work for me”*
**Side Effects**5%
*“After a week and a half, I developed terrible nausea that kept me up all night”*
**Stress/Anxiety**4%
*“This made me have the WORST anxiety in the world”*
**Acid Regulator/Stomach Ache Relief**3%
*“can cause nausea”*
**Allergies**2%
*“Allergen Caution”*
### **Top return reasons **
**Advertised Vs Actual Product**20%
**Value For Money**20%
**Ease Of Chewing/Swallowing**20%
**Sleep Quality**10%
**Temperature Retention**10%
**Quality-Overall**10%
**Functionality-Overall**10%
## **Common questions**
- **Is ps100 profitable to sell on Amazon United States?**
- The niche generates $627K/yr across 21 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -11.2%. Flapen's verdict: Worth a look (64/100).
- **How competitive is the ps100 niche?**
- 14 brands and 493 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 60% of demand.
- **What do buyers complain about in ps100?**
- Top complaints mined from reviews: Dosage, Ingredients-Overall, Sleep Quality. The return rate is 0.0%.
- **When does demand for ps100 peak?**
- Demand peaks in Jan–Feb–Dec; the busiest month runs 3.2× the quietest.
- **What does it cost to enter the ps100 niche?**
- Listings span $14.75–$79.26; the average listing price is $32.69 (sweet spot $15–$100). The average incumbent carries 941 reviews — the moat a new listing must climb.
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