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.

d aspartic acid

Skip it

Brand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

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

Good5.7%

search→purchase rate — share of searches ending in a sale

Quality gap

Good4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay1,586.36

avg incumbent reviews — the moat a new listing must climb

Market size

Okay$126K

$126K/yr · 119K searches

Competition

Bad79%

top-5 click share — a locked-up shelf

Growth

Bad-23.9%

90-day search growth — must beat 0% to launch

Brand share

Bad97%

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

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

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

79%

Top 20: 100%

Open market

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.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top d aspartic acid search terms

daa49K/yr -33.7%1.3% conv.
d aspartic acid31K/yr -18.8%12.2% conv.
d-aspartic acid16K/yr -20.1%13.2% conv.
d aspartic acid supplement for men11K/yr -12.3%10.7% conv.
daa supplement for men4K/yr +14.7%8.3% conv.
d-aspartic acid supplements for men5K/yr -23.5%13.3% conv.
aspartic acid4K/yr -22.9%8.3% conv.

All 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.

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

Nutricost D-Aspartic Acid (DAA) Capsules 3000mg Per Serving (180 Capsules) - Non-GMO

Nutricost$14.834.4★5,905 rev

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$17.174.5★2,597 rev

Nutricost D-Aspartic Acid (DAA) Capsules 2000mg Per Serving (180 Capsules) - Non-GMO Supplement

Nutricost$12.864.4★159 rev

Nutricost D-Aspartic Acid (DAA) Powder 300G - Pure D Aspartic Acid

Nutricost$18.774.4★618 rev

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$14.474.5★270 rev

Newest

by launch date

Nutricost D-Aspartic Acid (DAA) Capsules 2000mg Per Serving (180 Capsules) - Non-GMO Supplement

Nutricost$12.86159 rev

3y ago

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$16.8248 rev

3y ago

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$14.47270 rev

4y ago

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$29.582,563 rev

5y ago

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$16.852,341 rev

7y ago

What buyers say about d aspartic acid

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall28%

“Quality product”

Efficiency16%

“it really works”

Advertised Vs Actual Product13%

“Works as advertised”

Side Effects6%

“there's been no obvious side effects”

Focus Enhancement6%

“this one is much more concentrated”

Acid Regulator/Stomach Ache Relief4%

“didnt give any upset stomach when taking”

Taste-Overall3%

“Taste isnt bad”

Dosage3%

“3000mg seems to be the effective dose for me”

Stress/Anxiety2%

“I am happy and positive, more hopeful and daring, feeling anxious. in a good way”

Hormonal Balance2%

“GREAT results for this 71 year old man”

What buyers complain about

Functionality-Overall13%

“Didn't work for me at all”

Dosage13%

“the biggest con my husband has for this is that no supplement should take 6 of them to get the job done”

Value For Money11%

“All vitamins supplements are expensive”

Cough Relief8%

“Didn't do much for me besides getting a sore throat”

Quality-Overall8%

“Junk”

Side Effects8%

“Read several negative articles about negative side effects taking Aspartic Acid supplements”

Nutritional Content8%

“What a piece of crap nutricost cost is”

Taste-Overall8%

“The powder taste horrible”

Ingredients-Overall4%

“Inadequate CoQ10 even with 3 capsules daily dosage”

Vitamin3%