Alum Blocks, Pencils & Sticks

An alum block is a traditional grooming essential that has been used for centuries to soothe the skin after shaving. Made from natural potassium alum, these mineral stones work as an astringent, tightening pores, reducing redness, and helping to stop minor nicks and cuts. At NOAH, we offer a premium selection of alum blocks, pencils, and sticks — perfect for men seeking a natural way to calm irritation and achieve a smooth finish after shaving.

Alum pencils (sometimes called styptic pencils) and styptic gels are especially handy for targeted application on small cuts, while larger alum blocks and sticks can be applied across the entire face for an instant cooling and tightening effect. Lightweight and long-lasting, an alum block is an essential part of any traditional wet shaving routine and a natural alternative to chemical-based aftershaves.

Frequently Asked Questions

What is an alum block used for?

An alum block is rubbed gently on damp skin after shaving to reduce irritation, close pores, and stop minor bleeding from nicks and cuts. It also leaves the skin feeling refreshed and toned.

Are alum pencils the same as alum blocks?

They’re made from the same mineral but used differently. Alum pencils (styptic pencils) are designed for precise application to small cuts, while alum blocks and sticks cover larger areas of the face.

Is an alum block good for sensitive skin?

Yes. Alum is naturally soothing and can help calm redness, razor burn, and irritation. However, people with very dry skin should use it sparingly and follow with a moisturiser.

How long does an alum block last?

With proper care, an alum block can last for months — even a year or more — since only a small amount is needed after each shave.

Can alum blocks replace aftershave?

They can be used on their own, but many shavers use an alum block first for its antiseptic and pore-tightening benefits, then follow with an alcohol-free aftershave balm for extra hydration.