Crystal Crystal Deodorant

CRYSTAL deodorants use potassium alum (ammonium alum mineral salt) as the primary active. When applied to the underarm, the salt creates a thin mineral layer on the skin surface that inhibits the odor-causing bacteria responsible for body odor. This is a bacteriostatic mechanism - it prevents bacteria from multiplying, which stops odor at the source rather than masking it with fragrance.

Mineral salt deodorants do not block sweat ducts, so they are not antiperspirants. Sweating continues normally. The odor-control effect depends on consistent application and covering the entire underarm surface. For people switching from conventional antiperspirant/deodorant combos, there is usually a one to two week adjustment period while the skin's bacterial balance shifts.

CRYSTAL carries three stick products: the Deodorant Stick 40g, the Deodorant Travelstick 40g, and the Deodorant Stick 120g. The standard 40g and the Travelstick 40g are the same weight - the Travelstick is specifically packaged for portability and TSA compliance (under 100ml equivalent), making it the practical pick for air travel. At 40g it fits in a carry-on toiletry bag without needing to be checked.

The Deodorant Stick 120g (and the same-size Body Deodorant Stick 120g) is the full-size option for home use, lasting significantly longer per stick. The 120g stick has a longer application surface and more product mass, which is better value for daily use. Stick application is generally considered the most precise of the three formats - the solid mineral surface applies directly where you press it.

The roll-on category includes three products at 66ml: the standard Deodorant Roll-on, the Deodorant Lavender Roll-on, and the Mineral Deodorant Roll-on Pomegranate. All three are 66ml liquid mineral-salt solutions delivered via a rolling ball applicator. Roll-ons distribute the mineral liquid evenly across the underarm surface and feel cool on application due to the liquid format - some people prefer this over the slight drag sensation of a stick.

The Lavender Roll-on adds a botanical lavender fragrance to the mineral base. The Pomegranate Roll-on adds a fruit-forward scent. Both scented options use natural fragrance sources, consistent with CRYSTAL's ingredient positioning. The unscented standard Roll-on is the choice for anyone with fragrance sensitivity who still wants a roll-on format rather than a stick.

Three body spray options at 118ml: the Deodorant Pomegranate Spray, the Deodorant Body Spray (standard), and the Deodorant Body Spray Unscented. Sprays apply a fine mist of mineral salt solution and are the most hands-off format - useful for reaching areas beyond the underarms or for quick all-over freshness. The 118ml size meets most airline liquid limits at 3.4oz/100ml borderline - check specific airline rules, as 118ml may exceed carry-on allowances on some carriers.

The pomegranate spray is the most distinctive scent variant in the collection. The unscented spray is the best option for fragrance-sensitive skin or for use in environments where strong scents are not appropriate. All sprays dry quickly due to the fine mist format.

CRYSTAL offers three scent directions across the collection: pomegranate (available in roll-on and spray), lavender (available in roll-on), and unscented (available in stick, body spray). The pomegranate variants have a light, slightly sweet fruit scent. The lavender roll-on has a botanical, floral character. All scented variants use the mineral salt base with fragrance added - the deodorant mechanism is the same across scented and unscented products.

For daily office use, the light scents are generally non-intrusive. For anyone with fragrance contact dermatitis, the unscented Deodorant Body Spray Unscented or a plain stick is the safer starting point. The unscented stick formats have no added fragrance at all - just mineral salt and a binder - making them the most stripped-down option in the collection.

Conventional antiperspirant-deodorants use aluminum chlorohydrate or aluminum zirconium compounds to temporarily block sweat ducts. CRYSTAL's mineral approach uses potassium alum, which does not block pores and does not reduce sweating. For people who sweat heavily and need sweat reduction, CRYSTAL is a deodorant, not an antiperspirant - it addresses odor but not wetness.

The argument for mineral deodorant is primarily ingredient simplicity. Potassium alum has been used as a deodorant mineral for centuries, has a different aluminum compound structure from synthetic antiperspirant aluminums, and does not carry the same debate around pore blockage. CRYSTAL positions itself as a gentler, more natural alternative for people who want effective odor control without the full antiperspirant formula. For most people, it works well for daily activity; intense exercise may require more frequent reapplication.

The Deodorant Travelstick 40g is the explicit travel variant - it's compact, solid, and won't leak in luggage, and the 40g solid size meets TSA liquid carry-on rules (solid deodorants are generally not restricted by the 3.4oz liquids rule). For a carry-on kit, the solid stick is more reliable than the 118ml spray (which is over the 100ml liquid limit on many carriers) or the 66ml roll-on (which just fits under 100ml but counts toward your liquids bag).

For checked baggage or road travel, the 120g stick or 118ml spray both offer better value per trip than the 40g travel size.

Sensitive underarm skin - prone to razor burn, irritation from fragrance, or reactions to conventional antiperspirant compounds - is one of the main use cases mineral deodorant brands target. CRYSTAL's unscented options (standard stick, Deodorant Body Spray Unscented) are free of added fragrance and use only the mineral salt plus a basic formula, which reduces the number of potential irritants substantially.

Potassium alum itself can cause contact dermatitis in a small subset of people, so if you have known alum sensitivity, patch test before full use. For the majority of sensitive-skin users, the unscented mineral stick is well-tolerated. After waxing or shaving, wait 24 hours before applying any deodorant to freshly depilated underarm skin - mineral or otherwise.