Skin & bodyHow-to guide
Hair Dye Safety: Allergy Tests and Reactions
How to dye your hair at home more safely: why to test 48 hours before, what PPD is, signs of a reaction, what to do, and when it's an emergency.
Based on NHS · FDA
2 min read
Health topic
Skin and Body Care
Healthy skin, hair and nails start with simple, consistent care. This hub covers sun protection, gentle cleansing and moisturising, and safe ways to handle everyday beauty tasks such as hair dyeing at home.
Always patch-test new products, follow product instructions, and see a doctor or dermatologist for changing moles, persistent rashes or skin that will not heal.
What this topic covers
Sun protection
Choosing and using sunscreen, shade and clothing.
Everyday skin care
Cleansing, moisturising and avoiding irritation.
Hair care
Washing, dyeing and protecting hair and scalp.
Nail care
Keeping nails healthy and removing polish safely.
Skin & body guides
- Skin & body
- Skin & body
How-to guide
How to Choose and Use Sunscreen Properly
What SPF, UVA stars and 'broad spectrum' mean, how much sunscreen to use, when to reapply, and why sunscreen alone is not enough.
Based on NHS · American Academy of Dermatology
3 min read
Videos on skin & body
All videosSkin & body
How to Dye Black Hair Red at Home | Complete Hair Dye Guide for Beginners
Watch on YouTube (opens in a new tab)Skin & body
How to Remove Glitter Nail Polish at Home | Quick Ways to Remove Nail Polish from Fingernails
Watch on YouTube (opens in a new tab)Skin & body
How to Remove Hair Dye from Skin and Scalp | How to Prevent Hair Dye From Staining Your Skin
Watch on YouTube (opens in a new tab)
Frequently asked questions
What sunscreen should I use?
The American Academy of Dermatology recommends a broad-spectrum, water-resistant sunscreen with SPF 30 or higher, applied generously and reapplied about every two hours outdoors or after swimming or sweating.
Source: American Academy of Dermatology — How to select a sunscreen (opens in a new tab)