alum block
Skip itPrices mostly outside the sweet spot ($3.92–$9.22) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Great10.4%search→purchase rate — share of searches ending in a sale
Review moat
Good921.73avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Growth
Good+23.9%90-day search growth — must beat 0% to launch
Brand share
Okay80%top-5 brand share — brands hold most of the demand
Avg price
Bad£6.09avg listing price — sweet spot $15–$100
Competition
Bad80%top-5 click share — a locked-up shelf
Market size
Bad£36K£36K/yr · 57K searches
Price range
Bad£3.92–£9.22cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, alum block is a £36K/yr Amazon United Kingdom market (57K searches/yr). The top 5 brands hold 80% of demand. Verdict: Skip it — 44/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
alum block market data
- Units sold / yr
- 6K–8K
- avg 250–500/product
- Revenue / yr
- £37K–£49K
- units × avg price
- Conversion rate
- 10.4%
- Avg BSR
- #66
- Page quality
- 0%
- Prime
- 91%
- Sponsored
- 64%
- Out of stock
- 3.6%
- Avg brand age
- 72 months
- Avg seller age
- 181 days
Competition & brand share
The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.Brands
11 falling
Sellers
40
Top-5 brand share
80%
Top 20: 100%
Top-5 click share
80%
Top 20: 100%
Open market
15%
- Herbs Botanica28%
- Masala Cottage17%
- JACK SHAVER16%
- Proraso13%
- Osma Laboratoires7%
- The Amin Beauty Tools4%
- Open — no brand owns it (5 brands, 15%)
Top alum block 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 11 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Herbs Botanica Alum Block for Shaving Soothing Aftershave Solution for Men Stops Bleeding from Nicks & Cuts Fitkari Alum Stone for Skin Care 3.5 oz Piedra de Alumbre by Herbs Botanica
Herbs Botanica£4.294.3★186 rev
Alum Block Wet Shave Bloc After Shave Blood Stopper Antiseptic Astringent After Shaving Alum Balm Block 100G by Masala Cottage (100 Grams) (1 Peaces)
Masala Cottage£3.924.2★192 rev
Jack Shaver Natural Alum Block in Plastic Case (100 g./3.5 oz.) Aftershave Blood Stopper Antiseptic Astringent Soothing Solution for Shaving Razor Burn Relief
JACK SHAVER£9.224.5★226 rev
PRORASO Post Shave Stone 100 g 400801
Proraso£6.444.4★2,946 rev
Osma Bloc - Alum Block 75g (Soothes Shaving Irritation)
Osma Laboratoires£6.874.5★4,879 rev
Newest
by launch date
Fatakadi Alum Slab 100g x 2 Natural Phitkari (Fitkari) Traditional Multipurpose Mineral for Skin Water Purification & Aftershave
ONE STOP DEALERS£5.3718 rev
Herbs Botanica Alum Block for Shaving Soothing Aftershave Solution for Men Stops Bleeding from Nicks & Cuts Fitkari Alum Stone for Skin Care 3.5 oz Piedra de Alumbre by Herbs Botanica
Herbs Botanica£4.29186 rev
Alum Block Alum Stone Fitkari Natural Aftershave Soothing Solution for Shaving Razor Nicks Bumps & Skin Irritation- Unscented Deodorant and Antiperspirant for Lasting Protection from Body Odour 100gm
The Amin Beauty Tools£6.4862 rev
Natural Alum Block in Plastic Case (100 g./3.5 oz.) Aftershave Stops Minor Nicks & Cuts After Shaving - Antiseptic Astringent Soothing Solution for Shaving Razor Burn Relief
ROZAR£4.1829 rev
Alum Block Wet Shave Bloc After Shave Blood Stopper Antiseptic Astringent After Shaving Alum Balm Block 100G by Masala Cottage (100 Grams) (1 Peaces)
Masala Cottage£3.92192 rev
Trending
90-day click momentum
Premium Alum Block for Shaving - 100% Natural Potassium Alum Astringent Stone - Instantly Stops Bleeding Soothes Razor Burn & Prevents Ingrown Hairs
Glamified , glam£5.014.3★
Fatakadi Alum Slab 100g x 2 Natural Phitkari (Fitkari) Traditional Multipurpose Mineral for Skin Water Purification & Aftershave
ONE STOP DEALERS£5.374.8★
Alum stone 115gr natural mineral deodorant vegan | has an antiseptic effect does not clog pores aftershave can be used to prevent skin irritation
ETC Cosmetic`s£6.214.4★
Herbs Botanica Alum Block for Shaving Soothing Aftershave Solution for Men Stops Bleeding from Nicks & Cuts Fitkari Alum Stone for Skin Care 3.5 oz Piedra de Alumbre by Herbs Botanica
Herbs Botanica£4.294.3★
PRORASO Post Shave Stone 100 g 400801
Proraso£6.444.4★
What buyers say about alum block
What buyers praise and complain about, mined from review topics.What buyers love
“This is a very good quality alum shaving block”
“Does what its supposed to”
“Plus point- longevity is great”
“It was very good value for money”
“Working great”
“This has helped reduce razor rash and spots”
“fresh feeling”
“It's a nice size”
“Works well for underarm odour”
“Easy to use”
What buyers complain about
“Doesnt work”
“not as good as i expected”
“The case is made of the most flimsy plastic as other reviews have mentioned”
“Burned, a lot”
“Misleading marketing photos made me thought it would again”
“Its a bit stinky”
“A bit rough”
“May require multiple passes over damp skin”
“you can get more rashes from shaving”
Top return reasons
Common questions
- Is alum block profitable to sell on Amazon United Kingdom?
- The niche generates £36K/yr across 11 tracked products. 90-day search growth is +23.9%. Flapen's verdict: Skip it (44/100).
- How competitive is the alum block niche?
- 11 brands and 40 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 80% of demand.
- What do buyers complain about in alum block?
- Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Material Quality. The return rate is 0.1%.
- What does it cost to enter the alum block niche?
- Listings span £3.92–£9.22; the average listing price is £6.09 (sweet spot $15–$100). The average incumbent carries 922 reviews — the moat a new listing must climb.