redensyl
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Conversion
Good6.5%search→purchase rate — share of searches ending in a sale
Price range
Good£9.04–£24.44cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good£12.68avg listing price — sweet spot $15–$100
Review moat
Okay2,748.5avg incumbent reviews — the moat a new listing must climb
Market size
Okay£147K£147K/yr · 179K searches
Growth
Bad-15.8%90-day search growth — must beat 0% to launch
Competition
Bad85%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, redensyl is a £147K/yr Amazon United Kingdom market (179K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Sep. Verdict: Skip it — 42/100.
Data updated Jul 20, 2026 · scored weekly · How we score niches
redensyl market data
- Units sold / yr
- 10K–13K
- avg 1,250–1,500/product
- Revenue / yr
- £127K–£159K
- units × avg price
- Conversion rate
- 6.5%
- Avg BSR
- #90
- Page quality
- 0%
- Prime
- 90%
- Sponsored
- 60%
- Out of stock
- 0.0%
- Avg brand age
- 29 months
- Avg seller age
- 157 days
Competition & brand share
The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 flat
Sellers
40
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
85%
Top 20: 100%
Open market
0%
- WishCare58%
- Be Bodywise27%
- Bare Anatomy7%
- Generic5%
- Minimalist3%
- Open — no brand owns it (0%)
Demand & seasonality
Weekly Amazon search volume, last 58 weeks — -15.8% search growth over the last 90 days.Peak months: Jan, Sep · busiest ÷ quietest = 5.6×
Top redensyl search terms
- wishcare hair growth serum60K/yr
- redensyl24K/yr
- bodywise hair growth serum roll on25K/yr
- wish care hair growth serum12K/yr
- redensyl hair growth serum9K/yr
- be bodywise8K/yr
- bodywise10K/yr
- be bodywise hair growth serum roll on9K/yr
- hair growth serum roll on6K/yr
- bodywise hair growth serum3K/yr
Top redensyl 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 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
WishCare Hair Growth Serum with Rosemary Redensyl Anagain Baicapil Caffeine Biotin
WishCare£10.464.1★9,520 rev
Be Bodywise Rosemary Hair Growth Serum (Roll On) | 3% Redensyl & 2% Anagain | Hair fall control serum for Women & Men | Promotes Hair Growth & Stimulates Hair Follicles | For All Hair Types | 25ml
Be Bodywise£9.374.1★1,601 rev
WishCare Hair Growth Serum Concentrate - 3% Redensyl 4% Anagain 2% Baicapil Caffeine Biotin & Rice Water - Advanced Hair Growth Serum for Hair Fall Control 100ml
WishCare£24.443.4★65 rev
Hair Growth Serum Concentrate - 3% Redensyl 4% Anagain 2% Baicapil Caffeine Biotin Plant Keratin & Rice Water - Hair Growth Serum for Men & Women (Pack of 1)
Generic£12.283.6★26 rev
WishCare Hair Growth Serum Concentrate - Resdensyl Anagain Caffeine Biotin Keratin & Rice Water 20ml
WishCare£9.134.7★197 rev
Newest
by launch dateWishCare Hair Growth Serum Concentrate - Resdensyl Anagain Caffeine Biotin Keratin & Rice Water 20ml
WishCare£9.13197 rev
Bare Anatomy Hair Density Serum 30ml | Redensyl Baicapil Anagain & Capilia Longa | Helps Improve Hair Density & Reduce Thinning | Lightweight Scalp Serum | Men & Women
Bare Anatomy£12.18225 rev
Bare Anatomy Advanced Hair Density Roll-On 3% Redensyl + 4% Anagain + 2% Baicapil + 5% Rosemary Rice Water Biotin & Saw Palmetto Reduces Hair Fall Supports Hair Growth Black 25 ml
Bare Anatomy£11.94225 rev
Be Bodywise Hair Growth Serum (Roll On) 3% Redensyl & 2% Anagain Hair Fall Control Serum For Women & Men Promotes Growth & Stimulates Follicles For All Hair Types Rosemary 25 ml (Pack of 2)
Be Bodywise£17.291,601 rev
WishCare Hair Growth Serum Concentrate - 3% Redensyl 4% Anagain 2% Baicapil Caffeine Biotin & Rice Water - Advanced Hair Growth Serum for Hair Fall Control 100ml
WishCare£24.4465 rev
Trending
90-day click momentumWishCare Hair Growth Serum Concentrate - Resdensyl Anagain Caffeine Biotin Keratin & Rice Water 20ml
WishCare£9.134.7★
Bare Anatomy Hair Density Serum 30ml | Redensyl Baicapil Anagain & Capilia Longa | Helps Improve Hair Density & Reduce Thinning | Lightweight Scalp Serum | Men & Women
Bare Anatomy£12.184.7★
Bare Anatomy Advanced Hair Density Roll-On 3% Redensyl + 4% Anagain + 2% Baicapil + 5% Rosemary Rice Water Biotin & Saw Palmetto Reduces Hair Fall Supports Hair Growth Black 25 ml
Bare Anatomy£11.944.7★
Be Bodywise 4% Aha Bha Underarm Roll On 50ml | 2% Lactic Acid 1% Mandelic Acid 1% Salicylic Acid | Controls Odour & Reduces Pigmentation | 0% Alcohol & 0% Aluminium | Flora Fragrance
Be Bodywise£9.044.3★
WishCare Hair Growth Serum Concentrate - 3% Redensyl 4% Anagain 2% Baicapil Caffeine Biotin & Rice Water - Advanced Hair Growth Serum for Hair Fall Control 100ml
WishCare£24.443.4★
What buyers say about redensyl
What buyers praise and complain about, mined from review topics.What buyers love
“The roll on applicator is the best part for me”
“Overall, its been a positive addition to my hair care routine, good quality and value for money,”
“Good product”
“Great value for money”
“- no overpowering scent”
“Easy to use”
“Its fresh, soothing, and adds to the overall experience without feeling overpowering”
“The product works very well on my hair”
“absorbs well”
“packed full of effective ingredients that have been proven to work”
What buyers complain about
“However, the bottle arrived leaking, and only about 70% of the product was left, which was really disappointing”
“its very hard to tell how much serum is being applied”
“Probably not surprising when one of the key ingredients is Rosemary from your herb garden”
“I, like many other men my age have sadly started losing hair and while I understand that I will inevitably lose it, I want to at least try prolonging the life it has, which is what led me to researching different products and ultimately to this hair growth serum by bodywise”
“sticky feeling some products do”
“which makes me a bit unsure about the quality or consistency”
“They were just so bad for my skin and skin flora”
“it is a tiny bottle”
“does leave my scalp/hair feeling greasy and sticky”
“It takes time and consistency”
Top return reasons
Common questions
- Is redensyl profitable to sell on Amazon United Kingdom?
- The niche generates £147K/yr across 10 tracked products. 4 of 5 products launched in the last 360 days are still selling. 90-day search growth is -15.8%. Flapen's verdict: Skip it (42/100).
- How competitive is the redensyl niche?
- 5 brands and 40 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in redensyl?
- Top complaints mined from reviews: Leak-Proof, Ease Of Application, Ingredients-Overall. The return rate is 0.3%.
- When does demand for redensyl peak?
- Demand peaks in Jan–Sep; the busiest month runs 5.6× the quietest.
- What does it cost to enter the redensyl niche?
- Listings span £9.04–£24.44; the average listing price is £12.68 (sweet spot $15–$100). The average incumbent carries 2,749 reviews — the moat a new listing must climb.