Sunscreen,
explained in full.
Melanin-rich skin supposedly does not need sunscreen. That is the myth that costs the most.
What it is
A sunscreen is a product that filters radiation before it reaches the skin. Two families: mineral filters (zinc oxide, titanium dioxide), which reflect, and chemicalfilters, which absorb.
The SPF number measures protection against UVB. The words “broad spectrum” mean it also covers UVA.
Why it matters here
Melanin protects — partly
It gives you a natural SPF estimated between 2 and 4. That is real, and it is far from enough. It filters mostly UVB and falls short against deep UVA.
And visible light
Protection does not stop at UV. Visible light and blue light play a part too.
Who it is for
Everyone, every day
- Including phototypes IV to VI
- Including in winter and on overcast days
- Including indoors near a window — UVA passes through glass
Even more so if
- You use retinol or exfoliating acids
- You are trying to fade marks — without protection, they come back
When
In the morning, last
Sunscreen is the last step of the morning routine, after serums and moisturizer. Reapply if exposure goes on.
How to choose
The objection is not theoretical. Many mineral sunscreens leave a greyish film on deeper complexions. A product you do not feel like wearing is a product you do not wear.
Tinted filters
Rather than untinted zinc oxide, the one behind the white cast.
Fluid formulas
Rather than thick creams, heavier to wear every day.
A finish you like
Matte, satin or luminous. The one you will actually wear.
Swipe to see the three criteria →
What comes next
In the method
This is the Shield pillar. It does not come last by accident: without it, the other four pillars lose part of their effect.
Caution
What to know
- A high SPF does not replace shade or clothing
- Too little product sharply reduces the actual protection
- Sensitive skin: tinted mineral filters are often better tolerated