Field Notes

Millions of views do not guarantee effectiveness. How concentration, formulation, and stability determine whether a viral ingredient actually works—and why consistency is more reliable than...

Sebum production, barrier function and inflammatory tendency vary throughout the menstrual cycle. What happens if the active ingredient dosage remains the same every day anyway?

Those who evaluate cosmetic products based on the INCI order overlook the crucial questions: Is the concentration correct, is the active ingredient stable, and does...

If you layer niacinamide and high-concentration vitamin C incorrectly, you risk a predictable chemical reaction. Here is what is behind the flush, how it occurs,...

Benzoyl peroxide can oxidatively inactivate retinol before it can take effect. What the chemistry behind this means, what common routine errors occur, and how a...

Skin is not a passive substrate, but a biologically active system with its own temporal logic. Procedural Skincare transfers principles of procedural simulation to daily...

Kojic acid is one of the most thoroughly researched brightening ingredients in cosmetics. What science knows about its effect on melanin synthesis – and what...

Fermentatively produced active ingredients are chemically identical to their natural counterparts – but often purer, more stable, and more sustainable. What precision fermentation means for...

Around 200 new skincare products are launched every month in Germany alone. Knowing the crucial quality characteristics allows for informed choices instead of relying on...