amino acids supplement
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Price range
Incredible$18.76–$94.21cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Great$50.00avg listing price — sweet spot $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Conversion
Good5.3%search→purchase rate — share of searches ending in a sale
Growth
Good+23.9%90-day search growth — must beat 0% to launch
Review moat
Good1,463avg incumbent reviews — the moat a new listing must climb
Market size
Okay$110K$110K/yr · 41K searches
Competition
Bad92%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, amino acids supplement is a $110K/yr Amazon United States market (41K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Oct–Dec. Verdict: Skip it — 48/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
amino acids supplement market data
- Units sold / yr
- 2K–3K
- avg 100–250/product
- Revenue / yr
- $100K–$125K
- units × avg price
- Conversion rate
- 5.3%
- Avg BSR
- #91
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 86 months
- Avg seller age
- 156 days
Competition & brand share
The top 5 products capture 92% of clicks — a locked-up shelf that new listings rarely crack.Brands
3 flat
Sellers
14
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
92%
Top 20: 100%
Open market
0%
- OptimalAmino94%
- BodyHealth3%
- Double Wood Supplements2%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +23.9% search growth over the last 90 days.Peak months: Jan, Feb, Oct, Dec · busiest ÷ quietest = 15.8×
Top amino acids supplement search terms
- optimal amino33K/yr
- optimal amino tablets3K/yr
- optimal aminos3K/yr
- optimal amino powder3K/yr
Top amino acids supplement 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 8 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
OptimalAmino Tablets (300 Count) | 99% Utilized Essential Amino Acids (EAA) Supplement Increase Muscle Recovery BCAA Protein Pre/Post Workout | NSF Certified for Sport Certified
OptimalAmino$51.634.5★147 rev
OptimalAmino Tablets (150 Count) | 99% Utilized Essential Amino Acids (EAA) Supplement Increase Muscle Recovery BCAA Protein Pre/Post Workout | NSF Certified for Sport Certified
OptimalAmino$29.444.5★147 rev
OptimalAmino Best Pre/Post Workout Recovery Drink 99% Utilization Essential Amino Acid Supplement NSF Certified for Sport Certified
OptimalAmino$52.554.0★59 rev
OptimalAmino Tablets Fitness Bundle (600 Count) | 99% Utilized Essential Amino Acids (EAA) Supplement | Increase Muscle Recovery BCAA Protein Pre/Post Workout NSF Certified for Sport Certified
OptimalAmino$94.214.5★147 rev
OptimalAmino Amino Acid Powder | 99% Utilized Essential Amino Acid (EAA) Supplement | Pre/Post Workout & Muscle Recovery | NSF for Sport Certified | Sour Green Apple Flavor
OptimalAmino$51.954.7★4 rev
Newest
by launch dateOptimalAmino Tablets (150 Count) | 99% Utilized Essential Amino Acids (EAA) Supplement Increase Muscle Recovery BCAA Protein Pre/Post Workout | NSF Certified for Sport Certified
OptimalAmino$29.44147 rev
OptimalAmino Amino Acid Powder | 99% Utilized Essential Amino Acid (EAA) Supplement | Pre/Post Workout & Muscle Recovery | NSF for Sport Certified | Sour Green Apple Flavor
OptimalAmino$51.954 rev
OptimalAmino OTG Stick Packs 5 Flavor Variety Box (30 Count) 99% Utilized Essential Amino Acid (EAA) Supplement Increase Muscle Recovery Vegan/Keto Pre/Post Workout NSF Certified for Sport
OptimalAmino$56.7948 rev
OptimalAmino Tablets (300 Count) | 99% Utilized Essential Amino Acids (EAA) Supplement Increase Muscle Recovery BCAA Protein Pre/Post Workout | NSF Certified for Sport Certified
OptimalAmino$51.63147 rev
OptimalAmino Tablets Fitness Bundle (600 Count) | 99% Utilized Essential Amino Acids (EAA) Supplement | Increase Muscle Recovery BCAA Protein Pre/Post Workout NSF Certified for Sport Certified
OptimalAmino$94.21147 rev
Trending
90-day click momentumOptimalAmino Tablets (150 Count) | 99% Utilized Essential Amino Acids (EAA) Supplement Increase Muscle Recovery BCAA Protein Pre/Post Workout | NSF Certified for Sport Certified
OptimalAmino$29.444.5★
OptimalAmino Amino Acid Powder | 99% Utilized Essential Amino Acid (EAA) Supplement | Pre/Post Workout & Muscle Recovery | NSF for Sport Certified | Sour Green Apple Flavor
OptimalAmino$51.954.7★
OptimalAmino Best Pre/Post Workout Recovery Drink 99% Utilization Essential Amino Acid Supplement NSF Certified for Sport Certified
OptimalAmino$52.554.0★
OptimalAmino Tablets (300 Count) | 99% Utilized Essential Amino Acids (EAA) Supplement Increase Muscle Recovery BCAA Protein Pre/Post Workout | NSF Certified for Sport Certified
OptimalAmino$51.634.5★
OptimalAmino Tablets Fitness Bundle (600 Count) | 99% Utilized Essential Amino Acids (EAA) Supplement | Increase Muscle Recovery BCAA Protein Pre/Post Workout NSF Certified for Sport Certified
OptimalAmino$94.214.5★
What buyers say about amino acids supplement
What buyers praise and complain about, mined from review topics.What buyers love
“No complaints”
“These essential amino acid capsules are perfect for aiding muscle recovery”
“As advertised”
“Best Way to Get Your Protein”
“Just easy bioavailable aminos”
“Great Value”
“Amino acids give me good energy and recovery”
“I bought these because of the high-quality ingredients”
“Ease of use”
“In a little over a week I dropped 5 pounds”
What buyers complain about
“Taste bad”
“Not telling the truth about protein. amino acids”
“It made me sick with stomach cramps, and diarrhea, and there is no refund”
“gagging trying to swallow”
“This product made me extremely sick- twice”
“it's a lot of money to lose”
“The smell is bad”
“Huge pills”
“I just couldnt keep taking them as much as I tried”
“Didnt work for me”
Top return reasons
Common questions
- Is amino acids supplement profitable to sell on Amazon United States?
- The niche generates $110K/yr across 8 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +23.9%. Flapen's verdict: Skip it (48/100).
- How competitive is the amino acids supplement niche?
- 3 brands and 14 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in amino acids supplement?
- Top complaints mined from reviews: Taste-Overall, Nutritional Content, Acid Regulator/Stomach Ache Relief. The return rate is 0.0%.
- When does demand for amino acids supplement peak?
- Demand peaks in Jan–Feb–Oct–Dec; the busiest month runs 15.8× the quietest.
- What does it cost to enter the amino acids supplement niche?
- Listings span $18.76–$94.21; the average listing price is $50.00 (sweet spot $15–$100). The average incumbent carries 1,463 reviews — the moat a new listing must climb.