Got a question about an ingredient? Spotted something we got wrong? Want to suggest a topic?We read every message. We don’t always reply instantly – but we do reply.

Email us at: hello@qcalculus.com

What we’re happy to hear about:

Ingredient requests – if there’s something you want broken down, tell us and we’ll add it to the list. Corrections – if we’ve made an error, we want to fix it. Science moves fast and we’re not precious about being wrong. Collaboration – if you’re a cosmetic chemist, dermatologist, or formulator and want to contribute, reach out.

What we can’t help with:

We’re not dermatologists and we don’t offer personalised skincare advice. If you have a skin condition, a reaction to a product, or a medical concern – please speak to a qualified professional.

For press or partnership enquiries, include “Partnership” in your subject line so it doesn’t get buried.