SKU: 41797688769

Alum Deodorant / Shaving Styptic of Volcanic Potassium Alum - Blocks

Sale price$10.80 Regular price$12.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Alum Deodorant / Shaving Styptic of Volcanic Potassium Alum - BlocksOnce you have tried our pure volcanic alum crystal deodorant there will be no looking back! This is one of our most popular products and customers come back for it time and time again. There are many uses and alum benefits for body care. Alum Ingredients Potassium alum bisulphate. The mineral forms in large blocks which are clear opaque sometimes with a purple or grey tinge. How Alum works Natural Volcanic Alum Crystal Deodorant works as a deodorant

Once you have tried our pure volcanic alum crystal deodorant there will be no looking back! This is one of our most popular products and customers come back for it time and time again. There are many uses and alum benefits for body care.

Alum Ingredients

Potassium alum bisulphate. 

The mineral forms in large blocks which are clear-opaque sometimes with a purple or grey tinge. 

How Alum works

Natural Volcanic Alum Crystal Deodorant works as a deodorant by leaving a fine salty, slightly alkaline film on the skin, inhibiting the growth of microbes. It keeps the skin fresh and deodorized all day. No microbes equals no odour. Natural alum allows perspiration, one of the body’s cleansing and interpersonal communication mechanisms, keeps the pores free, and does not stain clothing. The molecules are large and are not absorbed into the skin, plus the molecules have a negative charge, also keeping natural alum from entering the skin.

Volcanically formed alum crystals should not be confused with factory made deodorants which often use inferior, sometimes harmful synthetic chemical ingredients. Our alum crystals are simply collected from the desert surface, placed in sacks and then shipped to the UK.

Why Alum is used

The fully natural volcanic alum crystal deodorant is so effective that even people with hyperhidrosis (excessive sweating) get along well with real alum. On the other hand, the genuine alum allows people with sensitive skin to rejoice in being able to deodorize again.

Alum stone also makes a great natural aftershave, reducing the appearance of shaving burn, and stemming bleeding from shaving nicks. That is why traditional barbers use Alum styptic. Did you know that Alum stone can also be used to relieve insect bites, reduce shaving rash, cold sores, athletes foot and to sterilize small cuts and scratches?

What is Volcanic Alum Crystal? Is Alum safe?

The genuine potassium alum forms naturally at volcanic fumeroles. Alum is abundant where it occurs, but unfortunately there are no British sources. As alum is one of the earth most common and useful minerals, used since civilization began, we may have been importing it since the Roman Period, and certainly by the Medieval Period, every foreign ship brought alum into our ports for the wool dyers to use as a mordant.

The natural crystal, potassium alum, potash alum or alum stone is totally unprocessed. Crystal deodorants labelled as ammonium alum contain synthetic ammonium, a by-product of the chemical and nylon industry. Synthetic ingredients may contain chemical residues and cause allergic reactions and ammonium alum is not such an effective deodorant.

Earth-grown Alum Stone is a safe, natural and highly effective alternative. Natural and synthetic alums look similar. The only sure way to tell them apart – is the natural crystal breaks into irregular forms with irregular surfaces and every piece is different.

How we sell our Alum 

The types and weight are listed in the drop down menus - We charge £12.00 per 100g. There is a drop down menu where you can select either the crystal blocks,  or insect bite relief chips. We do have specimen crystal block pieces weighing up to 10kg.

Please note: If you are buying alum in the block form, we supply these crystals in pairs so that we can fulfil your order with the correct weights and price.

As each piece of alum is knapped from a larger block we can not always produce pieces of exact weights, however delays are minimized if we can provide two blocks at once – it is far easier for us to find pairs of crystals which match the weight/price band rather than a single piece. 

Alum Benefits for Body Care

Alum is a versatile and natural product that can be used for a variety of purposes, and there are many alum benefits for body care. It is a safe and effective way to improve the health and appearance of your skin. Alum is a naturally occurring mineral that has been used for centuries for its medicinal and cosmetic properties. It is a type of astringent, which means that it can help to shrink tissues and reduce inflammation.

Tonic: Alum can be used as a toner to help to tighten pores and reduce oil production. It can also help to reduce the appearance of blemishes and acne.

Deodorant: Alum can be used as a natural deodorant to help to control odour and keep armpits dry. It is also effective at preventing sweat stains on clothing.

Styptic: Alum can be used as a styptic to help to stop bleeding from minor cuts and scrapes. It can also be used to help to reduce swelling and inflammation.

Antiperspirant: Alum can be used as an antiperspirant to help to reduce sweating. It works by blocking the sweat glands, which helps to keep the skin dry.

Alum is generally safe for most people to use, but it is important to test it on a small area of skin before using it on a larger area. If you experience any irritation or allergic reaction, discontinue use.

How to use alum crystal deodorant in block form

  • Select a pair of alum blocks of at least 100g. It is far easier and faster to deodorize with pieces of this size, or larger rather than pieces which are smaller.
  • Before use, rub a new piece of alum crystal with a cloth in water to remove any angular edges before using on the skin. It will takes several weeks of gentle usage before the crystal becomes really smooth like the one in the photograph.
  • Apply alum stone deodorant in a thin layer straight after bathing to the wet skin. Alternatively, dampen the stone and apply to dry skin. Alum can also be used on the feet. For especially active days, rubs the stone on the skin for longer.
  • Always rinse the Alum Stone after use and allow it to dry.
  • Allow your Alum Stone to dry on its own soap dish to prevent damage to surfaces and preserve the alum crystal intact.

How to use an alum crystal block as a shavers styptic or aftershave

  • Alum stone helps control shaving rash and stems bleeding from shaving nicks (there may be a brief tingling or stinging sensation). Alum is astringent and mildly antiseptic.
  • Select a pair of alum crystals weighing at least 100g or select the insect bite relief set for highly portable  styptic crystals.
  • After shaving and rinsing the face, simply glide the alum crystal over the shaved area. Pay extra attention to small shaving nicks, where the alum will stem the bleeding. Warning the use of alum on broken skin will sting.
  • Wash and dry the crystal after use.

How to use alum for relieving insect bites

Some people are irresistible to insects. While the alum does not prevent bites, it is the treatment of choice if you want to avoid unsightly wheals, scarring and being generally bothered by the bite.

Select the insect bite relief set of three alum chips. These are three portable pieces, each piece between 2cm-3cm long, or you can use a larger piece. The person who has been bitten should drop their own saliva onto the insect bite.

Then rub a piece of alum, beginning at the outside of the bite, certainly encompassing any reddened areas of skin, concentrically into the puncture, over the course of 30 seconds to a minute.

People who act straight away will benefit the most. So far there has been excellent feedback with mosquitoes, mozzies, animal fleas, ants, horsefly and bedbugs.

How to use alum pebbles or powder to make your own deodorant

  • Please note we have created new pages for our alum powder and alum pebbles.

The ethics of using volcanic alum crystal deodorant

  • No chemicals
  • No perfumes
  • Naturally unfragranced
  • No preservatives
  • No colours
  • No alcohol
  • No processing (it is just collected from the surface of the Western Desert, and has never seen the inside of a factory), other than knapping or milling.
  • No added ingredients at all
  • Very economical. Take care not to drop your Alum Stone as it may shatter
  • Highly effective
  • Multifunctional (deodorant/shaving/insect bite relief) saving further on packaging, postage and bathroom clutter
  • Usually considered safe for sensitive skins
  • One piece can be shared by all of the users of the bathroom, as it is washed between each use, saving on bathroom clutter and packaging
  • For a change – a traceable deodorant!
  • Helpful for hyperhydrosis

If you need help selecting your alum please call 0800 023 5008 or 01508 486517 and I will try to find you pieces to suit your budget and requirements.

For some people just washing the underarms in rhassoul clay on a daily basis may obviate the need for a deodorant, because the clay has mild deodorizing properties. Hemp Oil Soap is great for washing under the arms to as it instantly removes body odour. Rinse the clay or hemp soap off thoroughly before applying the alum.

People with very sensitive skin who need to wear alum crystal deodorant during the day can wash the deodorant off before they go to bed at night.

At the other end of the scale, people with hyperhidrosis (a condition characterised by excessive sweating) often get along very well with volcanically formed potassium alum. They should always use natural alum in preference to aluminium chlorohydrate. Natural alum remains on the skin, killing microbes acting as a powerful deodorant, where as aluminium chlorohydrate, acting as an antiperspirant releases the aluminium ions into the sweat gland blocking the exit of sweat. Then elemental aluminium is inside the body. Please do make a point of trying fully natural potassium alum if you suffer from hyperhidrosis as they are a lot safer than strong antiperspirants!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41797688769

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 44 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
captl
Lake Worth, US
★★★★★ 5
Good Sunscreen!
Size: 12 Fl Oz (Pack of 1), Style: Sport Lotion SPF 50
Works Great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
L
Verified Purchase
Lee
Battle Creek, US
★★★★★ 5
Weightless, sheer, not greasy formula!
Size: 3 Fl Oz (Pack of 1)
I have tried an embarrassing amount of sunscreens from both high end brands sold at places like Sephora and Nordstrom to dermatologist brands to drugstore brands. This cerave sunscreen is literally perfect. For reference I am in my 30s with fair skin and combo skin. For reference I do not like the other cerave mineral sunscreens. They are extremely white. I do like the cerave ultra light daily moisturizer with spf 30 (I think it’s called) but it’s not waterproof. Here are the reasons why I love it SO much: -waterproof! (Lasts longer during a hot summer day AND I can wear it to the pool/beach with the kids. Truly a do it all sunscreen!) -wears really well under makeup -not greasy or oily -no white cast or film -cosmetically elegant -not drying and provides some moisture -didn’t cause sensitivity, acne or eye burning -i can even put it on my kids without them complaining -feels silky soft and weightless. Truly one of a kind. -cerave is a brand I trust -great mix of zinc and chemical active ingredients for effective protection -great for my combo skin -affordable, decent amount of product -convenient squeeze bottle that doesn’t leak I’m so glad I found this! The #1 reason why I love this is because I trust the protection of cerave and it wears beautifully under makeup! The only thing I can think that would make this better would be if it was a spf 50 but it’s perfect otherwise. I’ve already worn it to the pool and it preforms really well, even on a really hot day being outside for a long time! I live in south Texas. This is literally one of the only sunscreens my husband can stand wearing on his face. So it’s man approved for men who hate wearing sunscreen lol! I didn’t even realize it was labeled for face and body. Ive only been wearing it on my face, neck and chest. I need a bigger bottle for whole body application as we go swimming a lot! I purchased this sunscreen with my own money and this is NOT a paid review. I just really like it! :)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2024
C
Verified Purchase
CJH
Charlottesville, US
★★★★★ 5
Non-greasy and doesn't damage clothing
Size: 5 Fl Oz (Pack of 1)
I looked hard for a high quality sunscreen that wouldn't turn my clothes orange and this meets my needs. It is a strong, 30 SPF, but it is not heavy or greasy. It is effective, and it does not discolor my clothing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
E
Verified Purchase
Erin
San Leandro, US
★★★★★ 5
A must for summer!
Size: 5 Fl Oz (Pack of 1)
My go-to sunscreen. It’s clean, lightweight, and doesn’t leave that white cast like a lot of mineral formulas. I have blonde extensions and this is one of the only ones I’ve found that doesn’t turn them pink, which is huge. Wears really nicely on the skin and layers well—definitely a staple for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
J
Verified Purchase
Jennifer Kinzer
Battle Creek, US
★★★★★ 4
Overall good basic
Size: 3 Fl Oz (Pack of 1)
I was looking at mineral sunscreens because they are more natural, but I found the chalky film they leave on the skin to be undesireable. Still, I did not want a fully chemical formula. I was able to find this hybrid that also has hydrating ingredients and ceramides for the skin. It goes on light and provides great coverage. It is a little shiny/greasy however which is why I dropped a star.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026

recommand products