What order to apply skincare in
There is one rule that decides most of the order, and it is thinner before thicker. The rest...
Notes on skin, formulation and ritual.
Slow reading on the science, the texture, and the small daily acts that compound into quiet radiance.
Skin cycling: do you actually need it?
Skin cycling is a scheduling trick wearing a trend's clothing. What the four-night rotation actually is, the real...
A realistic morning skincare routine
The morning routine has three jobs: start clean enough, hydrate, and protect. Everything else is optional. What each...
Why skin looks dull, and what actually changes it
Dullness is a question about light, not about pigment. What is physically happening when skin stops reflecting evenly,...
How to use sunscreen on your face
Cham does not sell sunscreen, which makes this the easiest honest post in the journal. How much to...
When to apply face serum: morning, night, or both
The answer depends less on the clock than on what is in the bottle. A short guide to...
How to use a niacinamide serum
Niacinamide is one of the most widely used ingredients in skincare and one of the most casually applied....
Skin barrier repair, without the jargon
The skin barrier gets talked about constantly and explained rarely. Here is what it actually is, what damages...
Niacinamide and retinol together
Niacinamide and retinol are sometimes described as a clash. They are closer to a partnership: retinol strains the...