Lysine Powder
Skip itSoft demand (-7.3% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Great$19.31avg listing price — sweet spot $15–$100
Conversion
Great9.2%search→purchase rate — share of searches ending in a sale
Price range
Good$4.76–$39.41cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Okay2,048.63avg incumbent reviews — the moat a new listing must climb
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$89K$89K/yr · 50K searches
Growth
Bad-7.3%90-day search growth — must beat 0% to launch
Competition
Bad75%top-5 click share — a locked-up shelf
Is lysine powder profitable on Amazon?
According to Flapen's Amazon United States niche tracking, lysine powder is a $89K/yr Amazon United States market (50K searches/yr). The top 5 brands hold 83% of demand. Verdict: Skip it — 45/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
lysine powder market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 5K–6K
- avg 250–500/product
- Revenue / yr
- $97K–$116K
- units × avg price
- Conversion rate
- 9.2%
- Avg BSR
- #403
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 75%
- Out of stock
- 0.0%
- Avg brand age
- 82 months
- Avg seller age
- 173 days
Competition: brands, sellers & click share
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.Brands
12 falling
Sellers
33
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
75%
Top 20: 100%
Open market
14%
- Nutricost33%
- NOW Foods16%
- Carlson16%
- BulkSupplements13%
- Best Naturals5%
- Vetoquinol4%
- Open — no brand owns it (6 brands, 14%)
lysine powder demand & seasonality
Weekly Amazon search volume, last 104 weeks — -7.3% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top lysine powder search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- lysine powder28K/yr
- l lysine powder11K/yr
- l-lysine powder7K/yr
- lysine powder for humans4K/yr
Top lysine powder products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Nutricost L-Lysine Powder 1KG (2.2lbs) Pure L-Lysine Gluten-Free GMO-Free
Nutricost$21.634.7★1,021 rev
Carlson - L-Lysine Powder Free-Form Amino Acid 960 mg Supports Healthy Tissue & Muscle Development 3.53 oz (100 g)
Carlson$8.464.7★678 rev
NOW Foods Supplements L-Lysine (L-Lysine Hydrochloride) Powder Supports Collagen Synthesis* Amino Acid 1-Pound
NOW Foods$15.154.6★1,663 rev
BulkSupplements.com L-Lysine Powder - Lysine Supplement Essential Amino Acid for Immune Support - Gluten Free 1g per Serving 500g (1.1 lbs) (Pack of 1)
BulkSupplements$18.694.5★2,080 rev
Nutricost L-Lysine Powder 500 Grams - Pure L-Lysine Non-GMO Gluten Free
Nutricost$15.754.6★895 rev
Newest
by launch date
Horbaach L-Lysine Powder | 2.2 lbs | Free Form Amino Acid | Unflavored
Horbäach$22.70142 rev
L-Lysine for Cats 900mg - Immune Eye & Respiratory Support Powder
Coco and Luna$22.583,188 rev
Pure Original Ingredients L-Lysine HCl (1lb) Alpha Amino Acid Non-GMO Gluten-Free
PURE ORIGINAL INGREDIENTS$17.15501 rev
Nutricost L-Lysine Powder 1KG (2.2lbs) Pure L-Lysine Gluten-Free GMO-Free
Nutricost$21.631,021 rev
Nutricost L-Lysine Powder 500 Grams - Pure L-Lysine Non-GMO Gluten Free
Nutricost$15.75895 rev
Trending
90-day click momentum
Best Naturals Lysine Powder 1 Pound - 100% Pure (1 LB (Pack of 2))
Best Naturals$19.964.6★
Nutricost L-Lysine Powder 500 Grams - Pure L-Lysine Non-GMO Gluten Free
Nutricost$15.754.6★
Carlson - L-Lysine Powder Free-Form Amino Acid 960 mg Supports Healthy Tissue & Muscle Development 3.53 oz (100 g)
Carlson$8.464.7★
L-Lysine for Cats 900mg - Immune Eye & Respiratory Support Powder
Coco and Luna$22.584.4★
Vetoquinol Viralys - Lysine Supplement for Cats & Kittens - Supports Eye Wellness Respiratory Health & Immune Strength - Flavored Oral Powder for Easy Feeding & Daily Use - 100 Grams
Vetoquinol$30.954.6★
What reviews say buyers love and hate about lysine powder
What buyers praise and complain about, mined from review topics.What buyers love
“Carlson has a good reputation”
“Extremely Affordable”
“It has a slight taste”
“As Advertised”
“They seem to like the flavor”
“My picky cat LOVES this”
“Hmm does it work”
“Easy to use”
“This supplement with her inhaler seems to be helping with her asthma”
“Dissolves well”
What buyers complain about
“showes signs of allergy just one day after he started taking it”
“It does have a fishy smell”
“Didn't work g”
“The whole thing costed me almost $2,000”
“Doesnt really have a taste when I add it to my energy drinks”
“Quality is inconsistent”
“Much more GI-related issues. diarrhea”
“it didn't last much”
“on Chewy”
“There is no more hardened material for us to remove”
Top return reasons
Common lysine powder questions
- Is lysine powder profitable to sell on Amazon United States?
- The niche generates $89K/yr across 16 tracked products. 90-day search growth is -7.3%. Flapen's verdict: Skip it (45/100).
- How competitive is the lysine powder niche?
- 12 brands and 33 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in lysine powder?
- Top complaints mined from reviews: Allergies, Smell, Functionality-Overall. The return rate is 0.0%.
- When does demand for lysine powder peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the lysine powder niche?
- Listings span $4.76–$39.41; the average listing price is $19.31 (sweet spot $15–$100). The average incumbent carries 2,049 reviews — the moat a new listing must climb.