








🪒 Elevate your shave game with nature’s ultimate razor rescue!
Jack Shaver® Natural Alum Block is a 100% natural potassium alum stone weighing 100g, designed to instantly stop shaving nicks and razor burn while tightening pores. It doubles as a long-lasting, unscented deodorant and comes in a durable plastic case for clean, travel-friendly storage. Trusted by wet shaving enthusiasts for its effective antiseptic and soothing properties, this alum block offers a premium grooming upgrade that lasts over a year.















| ASIN | B0CVHKFHC7 |
| ASIN | B0CVHKFHC7 |
| Best Sellers Rank | 23,583 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 4 in Shaving Alum |
| Brand | JACK SHAVER |
| Country of origin | United Kingdom |
| Country of origin | United Kingdom |
| Customer Reviews | 4.6 4.6 out of 5 stars (173) |
| Customer reviews | 4.6 4.6 out of 5 stars (173) |
| Date First Available | 8 Feb. 2024 |
| Format | Block |
| Item model number | 5070002660002 |
| Manufacturer | Meera Samdani |
| Product Dimensions | 6 x 4.2 x 2.5 cm; 100 g |
| Units | 100.0 Grams |
N**K
Essential feedback tool for wet shaving, and the case is a lifesaver
If you are new to safety razor shaving or just tired of using tiny toilet paper squares for nicks, this block is a substantial upgrade from standard styptic pencils. I was surprised by the sheer size of the 100g block; it is the size of a bar of soap and, given how little dissolves per use, I expect this to last me well over a year. The alum works exactly as intended, providing immediate feedback—meaning it stings briefly—on areas where I applied too much pressure, while instantly sealing up small weeping cuts and tightening the skin. The real selling point for me, however, is the included plastic case. Since alum is highly water-soluble, it will slowly dissolve into a mess if you leave it sitting directly on a wet countertop, so having a dedicated container to store it in is essential for keeping it clean and intact. My only word of caution is that natural alum is brittle like ceramic, so if you drop this on a tiled bathroom floor it will shatter, but as long as you keep a good grip, it is a fantastic finish to a shave.
T**E
Good size with box
Very good & comes in a box. Does the job & a good size
G**S
Great product
This is a great product stops any bleeding quickly, reduces the size of pores, it comes with a case to keep the product clean. The block appears to last a long time I’ve only had it two weeks and the size has not reduced too much. The product was delivered next day. This would have had 5 stars but the product does sting. You could say that’s my fault for cutting myself but I am using a cut throat razor.
A**N
Works for me! Great for many things. Would give more stars. A bloc that works
I have used an Alum block before so I know what to expect. Good product! The problem was the packaging was broken. Not good as I use it while travelling. The seller was kind they sent a need product to me which was good of them. This product is a hidden gem. A good healing product for hair and skin. The seller was very happyful and thanks once again.
L**W
Does exactly what I need it to
Nice quality product which does what it says on the tin. I use this block every time I shave and find it leaves the skin less irritated in a matter of seconds. The way I use this is make the stone wet as well as my face (lukewarm water on my face and cold water on the stone), rub stone gently enough around the whole area I shaved, leave for a min and wash of with ice cold water. Maybe the 2nd best part of the shave besides putting on some good balm. 10/10
S**G
Use daily.
Excellent product always use after Wet Shave.
W**H
Great
Works super well
R**.
Didn't work well.
Bought for shaving cuts.
J**W
Case damaged / cracked on arrival.
C**R
Good product, last long, kinda sting, first time using an alum block! I think it helps stop the bleeding faster?
C**E
Buen producto.
E**A
Excellent product. The alum stone is natural, practical, and very effective. I use it as a deodorant and love how it leaves a fresh, clean feeling without strong scents or chemicals. It lasts a very long time, which makes it super cost-effective. I’ve also tried it after shaving and it instantly soothes the skin. 100% recommended for anyone looking for something natural and healthy.
J**Y
I have been using this as deodorant for several weeks and it works very well with no irritation (and both baking soda and alcohol cause irritation for me). I wet the end slightly and really go at it for several seconds to each underarm covering the whole area. It def gets me 24 hours odor free. Let dry out after (don't close it in the box). Sometimes I'll double up with another deodorant after but that might be unnecessary.
Trustpilot
1 week ago
4 days ago