Chemistry

What is sun protection factor or SPF? How is it defined? SPF is defined as… the dose of UV radiation required to produce 1 minimal erythema dose (MED) on protected skin after the application of 2 mg/cm2 of produce divided by the UV radiation to produce 1 MED on unprotected skin. In other words, it’s...

We have arrived at our third skin type – pigmented or non-pigmented. This is defined by pigmentation on the face or chest, not by the colour of your skin. The key is that this hyperpigmentation is unwanted, and is generally caused by too much sun exposure. Melanogenesis is a defensive mechanism our skin uses to...

The final type of sensitive skin types is the allergic type skin. This skin type exhibits redness, swelling, itching, and skin flaking when exposed to something to which the skin is allergic. Approximately 23% of women and 13.8% of men in Great Britain exhibit this skin type, and most of the reactions in personal care...

Sensitive skin type, stinging type, is characterized by a tendency to experience almost immediate stinging or burning sensations in response to various ingredients used in our products. If you have stinging with redness or inflammation, odds are you have the rosacea type skin. Stinging type skin isn’t generally accompanied by redness or inflammation – both...