Key takeaways
- Sun exposure is a major driver of visible aging: lines, loss of firmness and uneven tone.
- Use broad-spectrum SPF 30 or higher every day.
- Most people under-apply; use about two finger-lengths for face and neck.
Why SPF matters for aging
UV exposure accelerates the breakdown of collagen and contributes to fine lines, loss of firmness and uneven tone. Protecting your skin daily preserves the results you're working toward with peptides. See what is collagen.
Choosing a sunscreen
- Broad spectrum (UVA and UVB).
- SPF 30 or higher for daily wear.
- A texture you like: the best sunscreen is the one you'll wear every day.
How to use it
- Last stepAfter DOSE and moisturiser. See copper peptides and sunscreen.
- EnoughAbout two finger-lengths for face and neck.
- ReapplyEvery two hours outdoors, and after swimming or sweating.
Everyday habits
- Sunglasses to reduce squinting.
- A hat for long days outside.
- Shade during the strongest midday sun.
FAQ
Do I need sunscreen every day?
Yes, including cloudy days. UV reaches skin through clouds.
Is SPF in makeup enough?
Usually not. Most people don't apply enough makeup to get the labelled protection.
Does sunscreen work with copper peptides?
Yes. Apply DOSE first, then SPF as the last skincare step.
This article is for general information only and isn't medical advice. DOSE is a cosmetic product and is not intended to diagnose, treat, cure or prevent any disease. Individual results vary.