selank
Skip itBrand-locked demand (top 5 brands take 91% of clicks) — this niche doesn't clear our bar today.
Avg price
Incredible$35.83avg listing price — sweet spot $15–$100
Price range
Great$10.49–$88.90cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Review moat
Great386.75avg incumbent reviews — the moat a new listing must climb
Returns
Good2.7%return rate — above 5% kills the launch gate
Competition
Okay61%top-5 click share — leaders hold, buyers still browse
Conversion
Okay3.0%search→purchase rate — share of searches ending in a sale
Growth
Okay+5.1%90-day search growth — must beat 0% to launch
Market size
Okay$103K$103K/yr · 95K searches
Brand share
Bad91%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, selank is a $103K/yr Amazon United States market (95K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Jun–Jul–Aug. Verdict: Skip it — 48/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
selank market data
- Units sold / yr
- 3K–4K
- avg 250–500/product
- Revenue / yr
- $107K–$143K
- units × avg price
- Conversion rate
- 3.0%
- Avg BSR
- #3,891
- Page quality
- 0%
- Prime
- 71%
- Sponsored
- 83%
- Out of stock
- 22.5%
- Avg brand age
- 48 months
- Avg seller age
- 171 days
Competition & brand share
The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.Brands
11 rising
Sellers
15
Top-5 brand share
91%
Top 20: 100%
Top-5 click share
61%
Top 20: 95%
Open market
7%
- SELINK46%
- DR.OLFACTICS21%
- Generic14%
- NH Nootropics6%
- SehatiKu3%
- QUALITY RESEARCH CHEMICALS2%
- Open — no brand owns it (5 brands, 7%)
Demand & seasonality
Weekly Amazon search volume, last 93 weeks — +5.1% search growth over the last 90 days.Peak months: Jun, Jul, Aug · busiest ÷ quietest = 4.3×
Top selank search terms
- selank59K/yr
- selank nasal spray26K/yr
- selank peptide nasal spray3K/yr
- selank peptide for anxiety4K/yr
- selank nasal peptide2K/yr
Top selank 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
SELINK Hoodies For Women Casual Pullover Waffle Long Sleeve Drawstring Hooded Sweatshirt with Pocket Black-XXL
SELINK$24.734.4★448 rev
Semax + Selank Spray 5mg/5mg - USA Made - Modified Aminos
Generic$79.404.4★10 rev
Selank 0.16% Solution 33mL High Purity >99.8% (= 52.8mg Powder) 3rd Party Tested
DR.OLFACTICS$50.563.9★16 rev
DR.OLFACTICS Selank diacetate 40mL Spray (20mL*2) 0.16% TP-7 High Purity >99.8% Less Irritant
DR.OLFACTICS$64.084.0★17 rev
NH Nootropics Selank .20% (240mcg/spray) 30mg 15ml
NH Nootropics$45.693.9★67 rev
Newest
by launch date
LOCUS REGIT ACTUM Selank 3 ml
LOCUS REGIT ACTUM$39.690 rev
Selank 10mg - Analytical Material Compound 10mg
Cellaris Peptides$88.900 rev
Semax Nasal Spray Saline Mist Hydrating Nasal Care Portable 10mL Bottle (1pcs)
Semax Selank$39.970 rev
Semax + Selank Spray 5mg/5mg - USA Made - Modified Aminos
Generic$79.4010 rev
SELINK Two Piece Sets for Women Summer Outfits Ruffle Cap Sleeve Zip Top Wide Leg Pants Lounge Set Tracksuits Mist Blue-XXL
SELINK$38.38225 rev
Trending
90-day click momentumLOCUS REGIT ACTUM Selank 3 ml
LOCUS REGIT ACTUM$39.690.0★
SELINK Womens Varsity Striped Oversized Sweatshirt Crewneck Long Sleeve Casual Fashion Pullover Top Fall Outfits Red-L
SELINK$24.164.4★
Selank 10mg - Analytical Material Compound 10mg
Cellaris Peptides$88.900.0★
SELINK Flower Crochet Tops for Women Short Sleeve Hollow Out Sweaters Swimsuit Cover Ups Lightweight Knit Pullover Army Green-XL
SELINK$19.503.7★
Womens Dandelion Graphic Tank Tops Teen Girls Loose Tanks Vest Cute Floral Vintage Clothes Casual Racerback Tank Cami (Dark Green1 M)
XMNDS$13.614.4★
What buyers say about selank
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality”
“Good color”
“I didn't notice any side effects”
“Does as advertised”
“Helps with focus in distracting classroom environment without having to use ADHD medication that hits like a sledgehammer”
“Works great”
“Its soft and the perfect fit/length”
“Super cute and comfy shirt”
“They give me just the pick up I need to have some of that long lost energy back”
“This sweatshirt is the perfect weight”
What buyers complain about
“Does NOT get the job done”
“After a month nothing's changed”
“Elmer's glue in a bottle”
“Sinus Infection”
“I just cannot continue taking them due to that”
“I was a focus / motivation mess which landed me here”
“It is a bit big”
“However, the pills are really large, and hard for me to swallow”
Top return reasons
Common questions
- Is selank profitable to sell on Amazon United States?
- The niche generates $103K/yr across 24 tracked products. 3 of 13 products launched in the last 360 days are still selling. 90-day search growth is +5.1%. Flapen's verdict: Skip it (48/100).
- How competitive is the selank niche?
- 11 brands and 15 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 91% of demand.
- What do buyers complain about in selank?
- Top complaints mined from reviews: Functionality-Overall, Durability, Adhesion/Stickiness. The return rate is 2.7%.
- When does demand for selank peak?
- Demand peaks in Jun–Jul–Aug; the busiest month runs 4.3× the quietest.
- What does it cost to enter the selank niche?
- Listings span $10.49–$88.90; the average listing price is $35.83 (sweet spot $15–$100). The average incumbent carries 387 reviews — the moat a new listing must climb.