Non-Nano Zinc Oxide

INCI: Zinc Oxide · Mineral UV filter

25%Concentration Used
SPF 50Protection Level
Non-NanoParticle Safety Class¹

Mechanism of Action

Zinc Oxide provides physical (not chemical) UV protection — particles sit on the skin's surface and reflect/scatter UVA and UVB wavelengths, rather than absorbing radiation via a photochemical reaction. This means protection begins immediately on application.¹

Clinical Evidence

Key finding: Multiphoton microscopy imaging in human subjects confirmed non-nano zinc oxide particles remain on the skin's surface and do not penetrate into viable tissue.¹
Property Detail
UV Protection Reflects/scatters broad-spectrum UVA and UVB.¹
Particle Safety Non-nano (>100nm) particles do not cross into the bloodstream.¹

Formulation Rationale

SPF 50 broad-spectrum protection requires meaningful active-filter concentration; 25% is on the higher end for mineral formulas. We use non-nano particles exclusively, prioritizing established surface-level safety over a more cosmetically elegant (but less established) nano finish.

Usage Protocol

Apply liberally to all sun-exposed areas as the final step in your routine; reapply every 2 hours outdoors or after swimming/sweating.

Safety Profile

Regarded as one of the safest UV filters available; well tolerated by sensitive and acne-prone skin. Patch test before first use; avoid direct eye contact.

Where You'll Find It

Mineral Sunscreen SPF 50 (₹799)

Bottom line: The primary protective mechanism in the formula — every other ingredient exists to make wearing 25% of it daily genuinely comfortable.

References

  1. Noninvasive in vivo human multiphoton microscopy: proving nanoparticulate zinc oxide sunscreen safety