PURALUM is a dual-surface potassium alum applicator. Side A for face. Side B for underarms. 100% mineral. Refillable.
Pre-launch prototype. Final product pending engineering validation.
Not interchangeable. Not shared. Two physically distinct crystal surfaces, each optimised for its application zone.
Precise, even contact for delicate facial skin. Forest green cap. Circle symbol.
Curved for underarm anatomy and body contours. Sage green cap. Triangle symbol.
The same routine for both surfaces. No learning curve.
Select Side A for face or Side B for body. Caps are non-interchangeable.
Briefly hold under running water or dampen with your fingertips.
Light, even pressure. For face: circular motion. For body: glide motion.
Rinse the used crystal surface after each application.
Let the crystal surface dry completely. Replace cap only when dry.
Caps are non-interchangeable by design. Hygiene validation pending prototype testing.
The hygiene design is structural — not just procedural.
Side A and Side B are distinct crystal modules. They do not share a surface or contact zone.
Distinct symbols (◯ / △) and distinct colours (forest green / sage). Designed to prevent accidental swapping.
Crystal support cup includes drainage channels to clear residual water after rinsing. Concept — pending prototype testing.
Ring of ventilation holes in each cap crown allows moisture to escape during storage. Concept — pending prototype testing.
Two-post cradle holds product upright with both crystal ends exposed to air. Concept stage — not yet prototyped.
Both caps secured for travel. Drawstring pouch or protective sleeve. Sealed travel capsule concept under consideration.
Replace the crystal. Keep the housing. Reduce waste every cycle.
Replace when crystal depth < 5mm. Crystal wears slowly from use.
Quarter-turn at central grip releases the crystal module. ~30° rotation (Concept A).
Crystal module slides out. Dispose or recycle. Check local mineral disposal.
New refill slides in. Keyed orientation guides — prevents incorrect insertion.
Quarter-turn to lock. Alignment marks confirm sealed position. Audible click (design goal — not validated).
All measurements are provisional estimates. Subject to CAD modelling and ergonomic prototype testing.
| Measurement | Estimate | Status |
|---|---|---|
| Total height | ~115 mm | Provisional |
| Maximum width | ~42 mm | Provisional |
| Grip width | ~35 mm | Provisional |
| Side A crystal contact | ~28 × 22 mm | Provisional |
| Side B crystal contact | ~30 × 24 mm | Provisional |
| Cap depth (each) | ~18 mm | Provisional |
| Estimated total weight | ~80 g | Provisional |
| Estimated refill weight | ~40 g | Provisional |
📐 All measurements provisional — subject to CAD modelling, ergonomic prototype testing, and manufacturer confirmation.
Scale reference
Not "locked." We are honest about what is confirmed and what is still being resolved.
Subject to COGS confirmation after manufacturer quote.
Side A or Side B. Replace independently (Concept B) or as paired set (Concept A).
One product. Both surfaces. Side A (face) + Side B (body). Includes both caps.
For couples or households. Save ~11%.
Maximum value. Save ~20%.
Pricing is estimated based on target COGS. Final pricing confirmed after manufacturer quote, tooling costs and shipping validation. No purchase is available yet.
No payment. We'll contact you when launch is approaching.