---
title: "D Aspartic Acid — $126K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/d-aspartic-acid"
last_updated: "2026-08-11T08:08:47.071Z"
locale: en
meta:
description: "Niche score 41/100 · $126K/yr market · 119K searches/yr · $18.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · $126K/yr market · 119K searches/yr · $18.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "D Aspartic Acid — $126K/yr Amazon US Niche (2026) - Flapen"
---
# **d aspartic acid**
**Skip it**
Brand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.
Market size 29Growth 13Conversion 65Competition 17Returns 100Price range 78Avg price 83Brand share 7Review moat 49Quality gap 50
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$18.36**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$10.96–$29.58**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****5.7%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****1,586.36**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****$126K**
$126K/yr · 119K searches
**Competition**
**Bad****79%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-23.9%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****97%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, d aspartic acid is a $126K/yr Amazon United States market (119K searches/yr). The top 5 brands hold 97% of demand. Verdict: Skip it — 41/100.
Data updated Jul 17, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **d aspartic acid market data**
- **Units sold / yr**
- **10K–13K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **$184K–$230K**
- units × avg price
- **Conversion rate**
- **5.7%**
- **Avg BSR**
- **#473**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **64%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **72 months**
- **Avg seller age**
- **162 days**
## **Competition & brand share**
The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▲rising
**Sellers**
**8**
**Top-5 brand share**
**97%**
Top 20: 100%
**Top-5 click share**
**79%**
Top 20: 100%
**Open market**
**0%**
- Nutricost70% - BulkSupplements17% - Evlution4% - Biotech Nutritions3% - Simple-Organics3% - Natures Craft3%
## **Demand & seasonality**
Weekly Amazon search volume, last 102 weeks — -23.9% search growth over the last 90 days.
4K3KSpike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/health-household/d-aspartic-acid/trend)
## **Top d aspartic acid search terms**
- **daa**49K/yr-33.7%1.3% conv. - **d aspartic acid**31K/yr-18.8%12.2% conv. - **d-aspartic acid**16K/yr-20.1%13.2% conv. - **d aspartic acid supplement for men**11K/yr-12.3%10.7% conv. - **daa supplement for men**4K/yr+14.7%8.3% conv. - **d-aspartic acid supplements for men**5K/yr-23.5%13.3% conv. - **aspartic acid**4K/yr-22.9%8.3% conv. [**All search terms **](https://flapen.com/research/us/health-household/d-aspartic-acid/search-terms)
## **Top d aspartic 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%$19K30%$38K45%$57K60%$76K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nutricost D-Aspartic Acid (DAA) Capsules 3000mg Per Serving (180 Capsules) - Non-GMO**Nutricost**$14.83**4.4★5,905 rev](https://www.amazon.com/dp/B01N0ERKPQ) [2**BulkSupplements.com D-Aspartic Acid Powder - D-Aspartic Acid Supplement for Men Unflavored Amino Acid - Pure & Gluten Free 3g per Serving 250g (8.8 oz) (Pack of 1)**BulkSupplements**$17.17**4.5★2,597 rev](https://www.amazon.com/dp/B00E7JO0D8) [3**Nutricost D-Aspartic Acid (DAA) Capsules 2000mg Per Serving (180 Capsules) - Non-GMO Supplement**Nutricost**$12.86**4.4★159 rev](https://www.amazon.com/dp/B0BPK27BPR) [4**Nutricost D-Aspartic Acid (DAA) Powder 300G - Pure D Aspartic Acid**Nutricost**$18.77**4.4★618 rev](https://www.amazon.com/dp/B00MXD78S4) [5**D Aspartic Acid Testosterone Booster for Men - 3120mg DAA D-Aspartic Acid Pre Workout Powder Muscle Builder for Men 3.12g - Mens Health Supplement for Enhanced Drive Potency and Vigor - Unflavored**Evlution**$14.47**4.5★270 rev](https://www.amazon.com/dp/B0B2FK59W3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Nutricost D-Aspartic Acid (DAA) Capsules 2000mg Per Serving (180 Capsules) - Non-GMO Supplement**Nutricost**$12.86**159 rev3y ago](https://www.amazon.com/dp/B0BPK27BPR) [**BulkSupplements D-Aspartic Acid Capsules - DAA Supplement for Men & Women D-Aspartic Acid 3000mg - Unflavored & Soy Free 6 Capsules per Serving 180 Capsules (Pack of 1)**BulkSupplements**$16.82**48 rev3y ago](https://www.amazon.com/dp/B0B9HX7LZ8) [**D Aspartic Acid Testosterone Booster for Men - 3120mg DAA D-Aspartic Acid Pre Workout Powder Muscle Builder for Men 3.12g - Mens Health Supplement for Enhanced Drive Potency and Vigor - Unflavored**Evlution**$14.47**270 rev4y ago](https://www.amazon.com/dp/B0B2FK59W3) [**Pre Conception Male Fertility Supplement - Semen Volume Booster with CoQ10 Maca Root Methyl Folate & D-Aspartic Acid - Mens Fertility Supplement for Sperm Motility - Conception for Him - 90 Count**Natures Craft**$29.58**2,563 rev5y ago](https://www.amazon.com/dp/B093TLKW14) [**Simple-Organics Kaibro Nutra D-Aspartic Acid Supplement for Men 2440mg D-Aspartic Acid per Serving Energy & Testosterone Support Gluten-Free Non-GMO 180 Vegan Capsules**Simple-Organics**$16.85**2,341 rev7y ago](https://www.amazon.com/dp/B07NZ7XXLW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Biotech Nutritions D-Aspartic Acid Dietary Supplement 3000 mg. 200 Count**Biotech Nutritions**$10.96**4.3★**▲ 73%**](https://www.amazon.com/dp/B00CJNFU2Y) [**Nutricost D-Aspartic Acid (DAA) Powder 500G - DAA Supplement**Nutricost**$25.57**4.5★**▲ 65%**](https://www.amazon.com/dp/B07D6TNWL3) [**BulkSupplements.com D-Aspartic Acid Powder - D-Aspartic Acid Supplement for Men Unflavored Amino Acid - Pure & Gluten Free 3g per Serving 500g (1.1 lbs) (Pack of 1)**BulkSupplements**$24.12**4.5★**▲ 29%**](https://www.amazon.com/dp/B00E7JO0EW) [**BulkSupplements.com D-Aspartic Acid Powder - D-Aspartic Acid Supplement for Men Unflavored Amino Acid - Pure & Gluten Free 3g per Serving 250g (8.8 oz) (Pack of 1)**BulkSupplements**$17.17**4.5★**▲ 28%**](https://www.amazon.com/dp/B00E7JO0D8) [**BulkSupplements D-Aspartic Acid Capsules - DAA Supplement for Men & Women D-Aspartic Acid 3000mg - Unflavored & Soy Free 6 Capsules per Serving 180 Capsules (Pack of 1)**BulkSupplements**$16.82**4.7★**▲ 23%**](https://www.amazon.com/dp/B0B9HX7LZ8)
**~~View all trending →~~**
## **What buyers say about d aspartic acid**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**28%
*“Quality product”*
**Efficiency**16%
*“it really works”*
**Advertised Vs Actual Product**13%
*“Works as advertised”*
**Side Effects**6%
*“there's been no obvious side effects”*
**Focus Enhancement**6%
*“this one is much more concentrated”*
**Acid Regulator/Stomach Ache Relief**4%
*“didnt give any upset stomach when taking”*
**Taste-Overall**3%
*“Taste isnt bad”*
**Dosage**3%
*“3000mg seems to be the effective dose for me”*
**Stress/Anxiety**2%
*“I am happy and positive, more hopeful and daring, feeling anxious. in a good way”*
**Hormonal Balance**2%
*“GREAT results for this 71 year old man”*
### **What buyers complain about **
**Functionality-Overall**13%
*“Didn't work for me at all”*
**Dosage**13%
*“the biggest con my husband has for this is that no supplement should take 6 of them to get the job done”*
**Value For Money**11%
*“All vitamins supplements are expensive”*
**Cough Relief**8%
*“Didn't do much for me besides getting a sore throat”*
**Quality-Overall**8%
*“Junk”*
**Side Effects**8%
*“Read several negative articles about negative side effects taking Aspartic Acid supplements”*
**Nutritional Content**8%
*“What a piece of crap nutricost cost is”*
**Taste-Overall**8%
*“The powder taste horrible”*
**Ingredients-Overall**4%
*“Inadequate CoQ10 even with 3 capsules daily dosage”*
**Vitamin**3%
*“All vitamins supplements are expensive”*
### **Top return reasons **
**Advertised Vs Actual Product**50%
**Taste-Overall**50%
## **Common questions**
- **Is d aspartic acid profitable to sell on Amazon United States?**
- The niche generates $126K/yr across 11 tracked products. 90-day search growth is -23.9%. Flapen's verdict: Skip it (41/100).
- **How competitive is the d aspartic acid niche?**
- 6 brands and 8 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 97% of demand.
- **What do buyers complain about in d aspartic acid?**
- Top complaints mined from reviews: Functionality-Overall, Dosage, Value For Money. The return rate is 0.0%.
- **When does demand for d aspartic acid peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the d aspartic acid niche?**
- Listings span $10.96–$29.58; the average listing price is $18.36 (sweet spot $15–$100). The average incumbent carries 1,586 reviews — the moat a new listing must climb.
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