Glowaiva · Journal

What we write,
and why.

Short, sourced articles written for melanin-rich skin. No recycled generic advice.

Photoprotection

Dark skin: why melanin is not enough

Melanin provides an estimated natural SPF of 1.5 to 4. What that changes, and how to choose without a white cast.

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Actives

Niacinamide: the right concentrations

5 to 10%, or 5% maximum if your skin is sensitive. The pairings that work and those that do not.

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Retinol

Retinol: starting without irritation

From 0.025% to 0.5% over three months. The protocol, and the contraindication to know about.

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Phototypes

Phototypes IV to VI: the three challenges

Why the usual advice does not apply, and what actually changes.

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