Ingredients and routines

Once the basics are in place, the next questions are usually about ingredients. What does a retinoid actually do? Can you use vitamin C and exfoliating acids together? How do you start something stronger without upsetting your skin?

This section is for people ready to understand their products more deeply. The guides below explain the ingredients you’ll see most often, how active products work, how to layer them, and how to introduce one new thing at a time. If a product causes a reaction, stop using it, and speak to a pharmacist, GP or dermatologist if it doesn’t settle.

New to skincare? Start with the skincare basics

Retinoids

What retinoids are, how over-the-counter and prescription options differ, and how to start.

Vitamin C

What vitamin C can do for the look of your skin, the forms you’ll see on labels, and how to use it.

Exfoliation

Chemical and physical exfoliants, how often to use them, and the signs you’re overdoing it.

Ingredient combinations

Which ingredients work well together, which are better kept apart, and how to layer them.

Introducing new products

Patch testing, starting slowly, and giving a product enough time before you judge it.

Building a routine around a goal

How to shape a routine around one clear goal rather than adding a product for every concern.

Ask dewwie about your products

dewwie lets you ask questions about the products you already own, including how they fit together. Join the waitlist to be first in.

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