Ingredient Glossary
What is copper peptide (GHK-Cu)? What it does and how it reaches the skin
What is copper peptide (GHK-Cu), and how much of the laboratory evidence carries over to the skin? Its definition, the limits of the evidence,…
Guide · 80 articles
Skincare Guide
Referenced articles on skin types, ingredients and routine order. Product information comes from the s'hevec product data library.
All articles
80 articles · Page 4/7
Hydration & Barrier
What is the skin barrier? How to tell if it is weakened and how to support it
What the skin barrier is, how to tell when it is weakened and how to support it, with a decision table showing which products…
Ingredient Glossary
What are peptides? Signal peptides, Argireline and Matrixyl in skincare
What a peptide is, which types are used in cosmetics and where the evidence reaches its limits. How Argireline and Matrixyl 3000 work, and…
Skin Type
Sensitive skin care: how to introduce active ingredients
How to build a basic routine for sensitive skin, and in what order and at what frequency to introduce active ingredients. It also covers…
Ingredient Glossary
What is azelaic acid? Where it comes from and how it works
What is azelaic acid, where does it come from and how does it work? How medicinal forms differ from a cosmetic cream, how it…
Skin Type
Combination skin care: different needs for the T-zone and cheeks
A zone-by-zone care guide for combination skin, with a shiny T-zone and dry cheeks: which steps go on the whole face and which on…
Ingredient Glossary
What is alpha arbutin? How it differs from tranexamic acid, and the look of dark spots
What is alpha arbutin, how does it differ from beta arbutin and tranexamic acid, and what does EU regulation say? With its role in…
Skin Type
Dry skin care routine: a step-by-step guide to hydration and the barrier
How to cleanse dry skin, how to layer hydration and whether acid products and products with oils can be used, with a morning and…
Ingredient Glossary
What is tranexamic acid? Its use in skincare for the look of dark spots
What is tranexamic acid, is the form applied to the skin the same as the one used as a medicine, and can it be…
Skin Type
Oily skin care routine: morning and evening steps, and shine during the day
Morning, toner-evening and toner-free evening steps for oily skin; what causes oiliness, cleansing rules, controlling shine during the day and habits to avoid.
Ingredient Glossary
What is hyaluronic acid? Molecular weight and 8D hyaluronic acid
Hyaluronic acid is a humectant that attracts water, and its molecular weight determines how far it penetrates the skin. This article explains what 8D…
Sun Protection
What causes dark spots on the skin? Sun spots and uneven-looking tone
How sun spots and uneven-looking tone develop through cumulative sun exposure and how to use sunscreen if you are prone to dark spots, with…