Salicylic Acid: How This Gentle Exfoliant Works and How to Use It Well

What is salicylic acid?  Salicylic acid is a beta hydroxy acid, an oil-soluble exfoliant that is able to travel into the pore and clear away the build-up of dead cells and excess oil that can lead ...

Collagen Powder Before Bed: Why an Evening Serving Makes Such Intuitive Sense

When should you take collagen? Collagen can be taken at any time of day, yet a growing number of people choose to take it in the evening, and there is a quiet logic to the timing. The body carries ...

What to Look For in a Collagen Powder: A Considered Buyer's Guide

A quality collagen powder comes down to a few essentials: collagen that has been hydrolysed into small enough peptides the body can actually absorb, a clear and honest source, thoughtful companion ...

Retinoids, Retinals, Retinols, and Prescriptions: A Modern Guide to One of Skincare’s Most Powerful Families

Few ingredient groups in skincare inspire as much respect and confusion as retinoids. They are often described as the gold standard for rejuvenation, collagen support, blemish or acne management, a...