Skip to content

Osma - Alum Block (75g / 2.6oz)

by Osma
Original price $9.99 - Original price $9.99
Original price
$9.99
$9.99 - $9.99
Current price $9.99

Relief after a rough shave is just moments away with the Osma Alum Block, which contains natural antiseptic and astringent properties to soothe nicks and cuts.

Made from 100% pure crystalline alum, it calms irritation and leaves the skin feeling smooth, refreshed, and clean. It can be used in place of a styptic pencil and offers broader after shave relief.

Osma Laboratoires has been a leading name in French men’s grooming since 1957. They are the last remaining alum stone and hemostatic pencil manufacturer in France, known for using premium raw materials and traditional methods to craft high quality, natural shaving products.

Weight: 75g / 2.6 oz
Made in France.

At New England Shaving, orders are processed same-day or within 1-2 business days. Weekend or holiday orders are processed the next business day.

Shipping Address: Ensure your shipping address is accurate and complete at checkout. We are not responsible for delays, losses, or undeliverable packages caused by incorrect information. Missing, lost, or stolen packages after delivery is completed to the provided shipping address are not the responsibility of the company and will not be refunded or replaced.

Shipping costs are calculated at checkout. Free USA shipping on orders over $75. This free shipping offer may not be combined with any other discounts or promotions.

Shipping Methods & Delivery Times:

Standard: 2–8 business days (USPS Ground)

Expedited: 1–3 business days (USPS Priority)

Express: Overnight to 2 days (USPS Priority Mail Express or UPS Next Day Air Saver)

We cannot guarantee on-time delivery due to weather, holidays, or shipping carrier delays.

International Shipping: Costs and delivery times vary by destination.

Order Notifications: To receive notifications on the status of your order, please provide your email and/or phone number.

For assistance, contact [email protected].

For more information about shipping policies, click here.

Thank you for your order!

We appreciate your business at New England Shaving Company, and we strive to ensure your satisfaction with our products. Please review our returns and refund policy carefully to understand your rights and responsibilities.

Returns are accepted within 30 days of delivery.

Items must be unused, in original condition, with all packaging and seals intact.

For hygiene and safety reasons, straight razors (all), manicure, pedicure and grooming tools, opened blades, opened creams/soaps/lotions/liquids, used brushes/combs, opened gift sets/kits, and partially used blade sampler packs are non‑returnable.

For change‑of‑mind returns, shipping fees both ways are non‑refundable, and any prepaid return label cost will be deducted from your refund.

For damaged, defective, or incorrect items, contact us within 3 business days and we will make it right

Refunds are only issued if returned items meet our return criteria and confirmed condition.

What is an alum stone?

A natural potassium alum crystal used as a post-shave soother, styptic for tiny nicks, and a natural deodorant. It’s a mineral salt, not a cream or antiperspirant.

How do I use alum after shaving or waxing?

Lightly wet the stone and glide over clean skin on legs, underarms, or bikini line with gentle pressure. Rinse any residue and let the stone air-dry.

Can it help with razor burn and ingrowns?

Yes. It can calm redness and temporarily tighten the feel of skin. By reducing surface bacteria, it may help keep follicles clearer. Stop use if irritation occurs.

Does alum stop bleeding from small nicks?

Yes, use it briefly as a styptic on tiny cuts, then rinse. Avoid on deep cuts or inflamed skin.

Can I use it as a deodorant?

Yes. On clean, damp underarms, alum forms a salt barrier that helps control odor. It doesn’t stop sweat (not an antiperspirant).

Is potassium alum the same as aluminum chlorohydrate?

No. Potassium alum is a mineral salt that sits on the skin’s surface; aluminum chlorohydrate is an antiperspirant active that reduces sweat.

Will it stain clothes or leave residue?

Used sparingly and rinsed, it’s typically non-staining. Let skin dry before dressing.

Is it suitable for sensitive or very dry skin?

Often, but it can be drying. Patch test first, limit contact time, and moisturize afterward if needed.

How do I clean and store the stone?

Rinse after use and air-dry completely. Store in a dry place; don’t leave it sitting in water.

How long does an alum block last?

With daily use, several months or longer. It can chip if dropped, so handle with care.

Can I travel with it?

Yes. It’s a solid and generally TSA-friendly. Keep it in a small case to protect it and nearby items.

Tips on How to Use the Osma Alum Block:

Rinse Your Face: After shaving, rinse your face with cold water to remove any remaining shaving cream and close your pores.

Wet the Alum Block: Run the alum block under cold water for a few seconds. This will help it glide smoothly over your skin.

Apply to Shaved Areas: Gently rub the wet alum block over the areas you’ve shaved. Pay special attention to any nicks, cuts, or areas prone to razor burn.

Leave it On: Allow the alum to sit on your skin for a minute or two. You may feel a slight tingling sensation, which is normal and indicates the antiseptic properties are working.

Rinse Off: After a few minutes, rinse your face with cold water to remove any residue.

Dry and Store: Pat the alum block dry with a towel and store it in a dry place to ensure its longevity.

Using the Osma Alum Block as part of your post-shave routine can help reduce skin irritation, soothe razor burns, and leave your skin feeling smooth and refreshed. Make it an essential part of your shaving kit for a more comfortable and enjoyable shaving experience.