Stylist2y
The new Eumelanin Human Skin Colour Scale will help women of colour receive accurate medical diagnoses and appropriate care
What is the Eumelanin Human Skin Colour scale? According to the BAD, the newly introduced Eumelanin Human Skin Colour Scale – named after the most common pigment found in the skin – is a 5 ...
BBC3y
The pH scale
This is measured using the pH scale, which runs from pH 0 to pH 14. Universal indicator has many different colour changes, from red for strongly acidic solutions to dark purple for strongly ...