1. Ultraviolet irradiation (an important factor causing chloasma and sunburn)
2. Acne and trauma
3. Chemical stripping or laser treatment of inflammation
4. Aging (collagen saccharification and aging)
5. Chronic fatigue and poor blood circulation
Step 6 get pregnant
Common whitening ingredients and their classification
1. Inhibiting tyrosinase: vitamin C and its derivatives, glabridin (licorice extract), arbutin, thrombotic acid (tranexamic acid), kojic acid (allergic), azelaic acid (mainly acting on highly active melanocytes), Broussonetia papyrifera extract and aloesin.
2. Reduce melanin transport: nicotinamide and soybean extract.
3. Accelerate melanin shedding: salicylic acid, fruit acid and tretinoin.
Whitening methods of different skin types
Dry/sensitive skin
Suitable for products without alcohol and simple ingredients.
Suitable ingredients: licorice extract, green tea extract, medium/low concentration of vitamin B3.
Avoid ingredients: fruit acid, salicylic acid.
oily skin
Cleaning and hydrating is the first priority.
Suitable ingredients: In addition to dry/sensitive ingredients, vitamin A and its derivatives can also be used.
Whitening methods of different skin types
Mixed skin
Zoning care: focus on cleaning the T area, others can use whitening products to even the skin color in the T area.
Yellow and dull aging skin (non-inflammatory, sensitive)
You can use alcoholic skin care products.
Vitamin B3 and vitamin C can be used.
Appropriate fruit acid and salicylic acid
You can exfoliate every two to four weeks.
Collagen, vitamin C, vitamin E and vitamin A can all be taken orally.
No matter what skin type.
Do a good job of sun protection! ! !