The Alchemist’s Mineral Soap Bar

Muse is a fragrance-free cleansing bar formulated with zinc and magnesium in a base of olive . Each ingredient, selected for what it contributes to the skin.

Zinc

Zinc is one of the most studied minerals in dermatology. It is an essential trace element involved in cell renewal and the maintenance of healthy skin, and it acts as a cofactor for enzymes that support the skin’s natural repair processes. Zinc is also known for its antimicrobial and soothing properties, which is why it has long been used in skincare preparations for oily, blemish-prone, and easily irritated skin. In a cleansing bar, zinc helps purify the skin gently while supporting a balanced, comfortable complexion.

Magnesium

Magnesium has a long association with therapeutic bathing, from Epsom salt soaks to the mineral-dense waters of thermal springs. In skincare, magnesium salts have been studied for their ability to support skin hydration and reduce roughness and irritation, particularly in dry skin. Magnesium is also linked to the skin’s barrier function, the outer layer responsible for retaining moisture and protecting against environmental stress. Its presence in Muse reflects the bathhouse tradition the bar is built on: minerals that leave skin feeling calm rather than tight.

Olive Oil

Olive oil has been the foundation of fine soap-making for centuries, from Castile to Aleppo, and modern science explains why. It is rich in oleic acid, a fatty acid compatible with the skin’s own lipids, along with squalene, vitamin E, and polyphenols with recognised antioxidant activity. Saponified olive oil produces a mild, low-stripping cleanse with a dense, creamy lather, helping skin retain its natural moisture rather than washing it away. It is one of the reasons olive oil soaps remain a benchmark for gentleness.

Why Fragrance-Free Matters

Fragrance is among the most common causes of cosmetic skin sensitivity. Muse contains no fragrance and no colourants, making it suitable for sensitive skin and for anyone who prefers their cleanse unscented. It cleanses without competing with the rest of your skincare routine.

The Ritual

We recommend Muse as an evening bar. Used at the end of the day, it removes the residue of hours spent out in the world and marks a simple transition from activity to rest.

Ingredients: Olea Europaea, Elaeis Guineensis, Aqua, Zinc Oxide, Magnesium Chloride, Lye.

Disclaimer: At Heirloom Secret, we strive to keep our ingredient information as accurate and up to date as possible. However, as our formulations may evolve over time, ingredient lists can occasionally change. For the most accurate and current information, please refer to the ingredient list provided on your product packaging.

Care: Store on a draining soap dish, away from standing water, to extend the life of the bar.