The MikaMou Journal
Calm, evidence-based answers about skincare ingredients, the labels on your products, and the perfumes you wear. Every piece points back to a named source.
Ingredients
What actually helps, and what to look for, based on the evidence.
Can you use niacinamide with retinol?
Yes, and niacinamide can make retinol easier to tolerate. The "they cancel out" idea is a myth.
IngredientsCan you use hyaluronic acid with retinol?
Yes. HA's moisture can ease the dryness retinol sometimes causes, with no evidence they interfere.
IngredientsWhat is the retinol sandwich method, and does it work?
It works, reducing the irritation that makes people quit retinol. A 2025 study found the full version does soften its effect too.
IngredientsDoes sunscreen cause cancer?
No major health body has found evidence for it. A randomized trial found daily use lowers one skin cancer type's risk by 40%.
Reading the box
What the symbols and rules on your packaging actually mean.
What does the green dot symbol on packaging mean?
The two-arrow circle is a financing mark, not a recycling promise. Here is what it really tells you.
Reading the boxWhat does "paraben-free" actually mean?
It's a formulation claim, not a safety certification. Here is what it tells you, and what replaces the parabens.
More pieces are on the way, one at a time.