Exfoliation
What is skin pH? Why pH matters in acid products
Why the skin's surface is acidic, how soap and cleansing change its pH and why pH matters as much as concentration in acid toners,…
Articles on this topic
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Exfoliation
What does the active percentage mean? Is a higher percentage better?
What does the percentage on the label show, and what does it not? How percentage relates to pH, group totals and raw-material solution wording…
Exfoliation
Using active ingredients together: which ones belong in the same routine?
Which active ingredients can share a routine, and which should be split across different evenings? A general pairing table, how s'hevec products pair with…
Exfoliation
What causes dull skin? Skincare steps for a more radiant look
The three causes of dullness, the sign each one shows on the skin and the matching care step, with a weekly radiance plan that…
Exfoliation
What is lactic acid and what does it do?
What lactic acid does, whether it hydrates the skin and how it differs from glycolic acid, with the role of pH and concentration, the…
Exfoliation
What is PHA? Gluconolactone and how it differs from AHAs
What are PHA and gluconolactone, and how do they differ from AHA and BHA? The place and limits of gluconolactone in the formulas of…
Exfoliation
What does toner do, and do you really need it? Types of toner and how to choose
Not every routine needs a toner; what it does depends on the active it contains. The difference between acid and brightening toners, choosing by…
Exfoliation
Using acids at home: how often should you do a chemical peel?
How often should you do a chemical peel at home? The starting frequency for acid toners and rinse-off peels, how to increase it, a…
Exfoliation
What causes blackheads, and how can you reduce their appearance?
A blackhead is a plug at the pore opening that stays open to the surface and looks dark; the lighter dots lined up on…
Exfoliation
The difference between AHA and BHA: which acid for which skin?
AHAs work mainly on the skin's surface, BHA in the pores. A decision table by concern and skin type, the rule on using both…
Exfoliation
Why do pores get larger, and can they shrink? Causes and care steps
Why pores get larger and whether they can shrink or close. This guide covers care steps by cause, how to choose between a toner…
Exfoliation
What is salicylic acid? How BHA works inside the pore
How does salicylic acid work in the pore opening, why is it called BHA, and who should take care? Plus its role in Slyc-Alright,…