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Bloc Osma Alum Block, 2.65 Ounce

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4.5 4,597 ratings

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Amazon's Choice in Shaving Alum by Osma

$9.00 $3.40 per Ounce

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Purchase options and add-ons

Brand	Osma
Item Form	Balm
Skin Type	All, Dry
Product Benefits	Soothing
Material Feature	Natural

About this item

All natural astringent that closes razor nicks
Soothes and cools
Handmade
Made in France

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From the brand

Osma

With over 50 years of experience, we draw on a great deal of experience to create the products you expect.

We have been offering our customers products for wet shaving since 1957. Depending on the traditions of the craft, the careful selection of our raw materials, the selection of natural ingredients are the values we always put forward when creating our products. In this way, the tradition of OSMA, the product range for shaving, was born.
Alum Stone

Product Description

Osma Laboratories

Alum Block

The Osma Alum Block is a versatile and essential grooming accessory that has been trusted by men for generations. Crafted with meticulous attention to detail, this remarkable product offers a wide range of benefits for those seeking a high-quality shaving and skincare experience.

Made from premium-grade potassium alum, the Osma Alum Block is a natural mineral with remarkable properties that make it a must-have for any well-groomed gentleman.

Skin soothing Alum Block

It serves as an aftershave, antiseptic, and styptic agent, making it an all-in-one solution for various skincare needs.

One of the standout features of the Osma Alum Block is its ability to soothe and heal the skin after shaving. When applied to freshly shaved skin, it provides immediate relief by tightening the pores, reducing redness, and calming any potential irritation. This makes it particularly beneficial for individuals with sensitive or easily irritated skin.

Furthermore, the Osma Alum Block acts as a styptic agent, meaning it can effectively stop bleeding from minor cuts and nicks that may occur during shaving.

By simply moistening the block with water and gently applying it to the affected area, the alum creates a thin layer that coagulates the blood, aiding in the quick closure of the wound.

Benefits of Bloodstone

It has the effect of regulating blood flow and regulating blood circulation.
It is useful against skin skin and skin burns.
Increases body and body resistance.
All natural astringent that closes razor nicks
Excellent Post-shave Healer, Facial Skin Toner, Natural Deodorant and a handy Antiseptic Tool

WARNING: California’s Proposition 65

Product details

Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 1.5 x 1 x 2.25 inches; 2.12 ounces
Item model number ‏ : ‎ BLOC1
UPC ‏ : ‎ 798256388668 750557017425 793379161440 749447616466
Manufacturer ‏ : ‎ Derby International LLC, dba KANAR
ASIN ‏ : ‎ B004NEHR28

Best Sellers Rank: #89,048 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care)
- #4 in Shaving Alum

Customer Reviews:
4.5 4,597 ratings

Compare with similar items

	This Item Bloc Osma Alum Block, 2.65 Ounce	Recommendations Parker Large Alum Block with Travel Case (125 g./4.4 oz.) - A Natural Aftershave with Antiseptic Properties - an Essential Item for Every Wet Shaver	dummy THAYERS Alcohol-Free, Hydrating, Unscented Witch Hazel Facial Toner with Aloe Vera Formula, Vegan, Dermatologist Tested and Recommended, 12 Oz	dummy G.B.S Alum Block Bar Travel Cases, Pack of 3 (100 Grams Per Bar) Potassium Shaving Alum After Shave Soothing Razor Burn Relief	dummy Omega Potassium Alum Stick After Shave Shaving Facial Toner Treatment of Razor Cuts & Nicks
	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart
Price	$8.99	$12.99	$10.95	$12.99	$6.99
Price Per Unit	$3.39 / Ounce	$2.95 / Ounce	$0.91 / Fl Oz	$1.23 / Ounce	$6.99 / Count
Delivery	Get it as soon as Wednesday, May 15	Get it as soon as Tuesday, May 14	Get it as soon as Tuesday, May 14	Get it as soon as Tuesday, May 14	Get it as soon as Wednesday, May 15
Customer Ratings	4.54,597	4.6594	4.7121,988	4.5599	4.5953
Value for money	4.2	4.5	4.4	4.6	4.5
Scent	4.2	4.3	4.5	4.5	—
Easy to use	4.6	—	—	4.7	4.6
For traveling	—	3.6	—	4.4	4.7
Sold By	American Beauty Supply LLC	Super Safety Razors	Amazon.com	FGP	Razor Blades Club.
skin type	Dry, All	All	All, Normal	Dry	All
form	Balm	Bar	Liquid	Bar	Stick
size	2.65 Ounce (Pack of 1)	4.4 Ounce (Pack of 1)	12 Fl Oz (Pack of 1)	3.53 Ounce (Pack of 3)	1 Count (Pack of 1)
product benefit	Soothing	—	Tone; Balance, Soothe, & Hydrate	Soothing	—
weight	—	125 grams	355 grams	8 ounces	0.06 pounds
ingredients	Natural Alum	Alum Potash	Aqua/Water/Eau, Glycerin, Hamamelis Virginiana (Witch Hazel) Bark/Leaf/Twig Extract, Aloe Barbadensis Leaf Extract, Phenoxyethanol, Caprylyl Glycol, Ethylhexylglycerin, Citric Acid, Potassium Hydroxide *Denotes Certified Organic Ingredients	Alum Block Stone	—

Important information

Ingredients

Natural Alum

Directions

During Shaving - in the event of a cut apply moistened stone to affected area to stop bleeding instantly. After Shaving - run under cold water and rub lightly to tone the skin and close the pores.

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Customer reviews

4.5 out of 5

4,597 global ratings

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Aman

Miracle Stone!

Reviewed in the United States on February 8, 2024

Verified Purchase

This stone has replaced my after shave lotion, it’s that good! I’ve had itchy skin under my beard and recently even clean shaven, and used different treatments like tea tree soap and anti-fungal cream. Those work but don’t work 100%. By day three of using the Osma Stone all my itchy skin is gone! I even use it on my forehead and around my hairline. Wish I knew about this earlier!

Helpful

John H.

Imagine how much the bacteria would hate to live on a solid block of the stuff

Reviewed in the United States on April 23, 2016

Verified Purchase

I use this block as both an underarm de-odorizer and an aftershave treatment on my face. Yup. I use the same block for both. The reason it works on your pits is because it creates a hostile environment for odor causing bacteria. That's just by getting its residue on your skin. Imagine how much the bacteria would hate to live on a solid block of the stuff. Thus, it takes on no odor and does not cause any bacterial razor bumps or anything.

As an aftershave treatment, it stops bleeding from tiny cuts and weepers that are not leaking much, and it disinfects the whole surface that it is applied to. For a substantial cut, it won't stop the bleeding and you will need a styptic pencil, so if you have a tendency to hack your face up, this won't be your best solution. However, you will find this soothing as a daily application, so it should definitely be a part of your tool kit. This is good for what it's good for, and the styptic pencil handles the rest. Keep both on hand.

As a deodorant, it surprises me how effective this is. I use it daily, and it prevents odor all day if I don't sweat, or a partial day if I do. This is not an anti-perspirant, so if you decide to go out and chop some wood, don't be surprised if you need to reapply some alum. Or you can do what I do, which is keep a stick of deodorant around for emergencies. As it is though, I would say this works better than the organic deodorants I have had to use for years because of skin allergies to anti-perspirants.

This is a solid chunk of alum, so it isn't wearing down much. I think this thing could probably last a couple years with daily use.

I want to point out that this does not leave a visible residue on your face. You do not need to rinse or wipe it off. I apply it while my face is still wet after I rinse off my shaving cream remnants, and I let it dry. Then I put on an aftershave splash and lotion and head out the door.

26 people found this helpful

Helpful

It's That Guy Phil

Very handy to have, face feels great after using

Reviewed in the United States on March 3, 2020

Verified Purchase

I wasn't quite sure what to expect, as I had mostly used septic pencils in the past, but remember my dad used to use alum blocks when I was a child, decades ago. So I thought I'd give it a try. Very nice. Completely different than what I expected it to be. I like the astringency, and tightening aspect... even if it did spill down and tighten my lips as well. But my face felt my nicer.

I have seen various reviews about various different companies offering these. Some say they arrive broken, some say it's too small, and other complaints. Mine arrived in solid form, and has not splintered nor broken. While a bit smaller than I expected, I didn't really know what it was, and so it has worked out nicer in this size. Easy to use, and very effective.

6 people found this helpful

Helpful

M. Ross

Rather Expensive, but High Quality and Effective

Reviewed in the United States on May 20, 2011

Verified Purchase

While this is a high quality product and while it works well, it is on the expensive side.

Pros:

* Works on Nicks and Cuts - This product works well on my face for the occasional (and sometimes not so occasional as when my toddler comes in and pokes me while I'm shaving) nicks and cuts and for soothing razor burn. I use a double-sided safety razor, but this would work equally well after shaving with any device. Small cuts cease bleeding rapidly after application and razor burn is soothed after gliding this block over the area.

* Natural product - this is simply a block of alum. For those who wish to keep their cosmetic and toiletry products as natural as possible, this is the way to go. No manufactured chemicals here!

* Unisex - A browse through some of the reviews of this and competing products leads me to believe that this is a product used mostly by wet-shaving men. Ladies: This will work just as well, just as soothingly, on any areas where you happen to shave and leave nicks, cuts, or irritation. As some areas are more sensitive than others, you will appreciate that this is a natural product that works very well with sensitive skin. (For those who are wondering, my wife has attested to me that the forementioned is true)

Cons:

* Value - While it does perform well, it has to be understood that this is, after all, just a block of alum, as any other. This is the same substance being sold under other brands, at wildly varying prices. It doesn't make sense, then, to pay for an antiseptic alum block when the very same thing can be had for a fraction of the cost under a less sexy label... discounting the benefit of snob-appeal, of course. Considering also that this really does come in a diminutive size, (approx. 2" X 1" X about 1" thick) I have to conclude that better value can be had elsewhere.

* Fragile - Not specific to this particular brand, alum blocks are exceedingly fragile if dropped on a hard surface. If dropped on the sink or a tile floor, this block WILL shatter, leaving you with many tiny pieces of alum that - while retaining their effectiveness against nicks and cuts - are especially difficult and impractical to use. If used with care and if the block is in one piece when you receive it (mine was not), it ought to last years. As with any alum block meant for use after shaving, or any similar crystal deoderant, take care not to drop it on a hard surface.

Other Thoughts:

I enjoy using this for cuts and nicks after shaving, but prefer witch hazel for a soothing, antiseptic aftershave treatment because I find it easier to splash my face rather than rubbing this block all over. That is partly due to the fact that I can't get a solid enough grip on the thing to keep it from slipping from my grasp and shattering into smaller bits.

If you are not a wet-shaving connoisseur, styptic pens from the drugstore stop bleeding nicks in their tracks for a fraction of the cost. If you are one who appreciates using the same natural, effective post-shave astringent as the ancients, go with this product or similar, less well known name brands or non-name brands. This particular product by Osma is priced fairly well; There are much more expensive name brand items, and there are a few, slightly lower priced products... all containing the exact same ingredient.

My rating is actually a composite, as follows: Effectiveness of the product/material: Five stars; Pricing of the product relative to alternatives: Three stars; Ease of use: Four stars

128 people found this helpful

Helpful

A French import, this is the real thing.

Reviewed in the United States on March 12, 2024

Verified Purchase

Many alum blocks are available, some are pricier than this one. For wet shavers the Osma Bloc has a great reputation and this is the real thing. I found that after multiple uses the block remains smooth, pleasant to use, and is effective at reducing irritation.

Helpful

Joe Bennett

Awesome product!

Reviewed in the United States on August 30, 2023

Verified Purchase

This came with no crystals or cracks. Works great for me after shave regimen. One solid block means no tiny pieces falling off after I use it. Highly recommended.

One person found this helpful

Helpful

Top reviews from other countries

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Zelan Lycas

Excellent Alum block + Tips for Beginners

Reviewed in Canada on February 8, 2024

Verified Purchase

I actually was surprised to see how small the alum was, in the pictures it looks massive. I took some measurements using a digital caliper. an put items for scale, a dove soap bar and a 2-dollar coin. While I'm sure the alum works well, I found a bigger one on fendrihan.ca, It is the same brand just a bigger bar this one is 2.65 ounces while the other one is 3.5 ounces, the dimensions approx. (2 5/8' x 1 5/8' x 7/8') (6.5 x 4 x 2.2 cm). It may be thinner, but it is also heavier, taller and it comes in a plastic box.

The bigger Alum is $17.50 Canadien, so it is more expensive, but you are getting a carrying box, so it is more costly. Well, it is up to you everyone this bar works just fine, but if you want one with a carrying case, I'd go with the Bigger one, or if you want more value for money go with this one.

Some tips:
- wet your face then apply alum block (It will make the alum last longer)
- Wipe the alum block with a towel and let it dry off (helps keep the shape uniform, and crystals will not form in the alum)

5 people found this helpful

Key Kreff

Me gusto

Reviewed in Mexico on May 31, 2023

Verified Purchase

Funciona bien, al principio debes usarlo continuamente, después solo con un par de veces funciona, aunque cuenta mucho en el clima que vivas

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CHESTER

Excelente

Reviewed in Spain on February 21, 2024

Verified Purchase

Éste producto es sano, eficaz y duradero por lo cuál, no sale nada caro si tenemos en cuenta éstos tres factores importantes.
El tamaño y formato es perfecto para su manejo y para aprovechar lo al máximo.
Lo recomiendo a través de éste vendedor, todo está mucho más cuidado. Embalaje, empaquetado, producto pulido... Notas que compras algo bueno y por estrenar, sin necesidad de estar en la tienda para verlo.
Gracias.

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Marcell Melo

Excelente como pós barba e na barba.

Reviewed in Brazil on September 27, 2020

Verified Purchase

Para você que:

- Tem irritações de pele pós barba.
- Foliculite
- Inflamação do pelo pós barba
- sangramento pós barba
- sangramento da pele
- lesão de pele
- acne
- erupções de pele
- Foliculite Crônica

Eu posso afirmar com categoria, pois eu mesmo, tenho histórico de todos esses problemas acima destacados, que com o uso desse produto de forma adequada minimizou todos esses problemas! Basta molhar o produto e passar sobre a pele duas vezes ao dia todos os dias e ou conforme prescrição do seu médico. Excelente produto! Efeito secativo e ou adstringente imediato.

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Tiphaine Mavuzi Nzlms

Meilleur Pierre d’alun

Reviewed in France on April 30, 2024

Verified Purchase

Efficace dés la 1ère utilisation.

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Bloc Osma Alum Block, 2.65 Ounce

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Osma

Alum Stone

Product Description

Alum Block

Skin soothing Alum Block

Benefits of Bloodstone

Product details

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Bloc Osma Alum Block

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Bloc Osma Alum Block, 2.65 Ounce

Purchase options and add-ons

About this item

Consider a similar item

Frequently bought together

What do customers buy after viewing this item?

From the brand

Osma

Alum Stone

Product Description

Alum Block

Skin soothing Alum Block

Benefits of Bloodstone

Product details

Compare with similar items

Videos

Videos for this product

Bloc Osma Alum Block

Important information

Ingredients

Directions

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