La roche-posay is an auxiliary therapeutic cosmetic with mild texture and no irritation. If it is sensitive skin and other cosmetics have irritating reactions, you can choose la roche-posay. There is no age limit for this, but the price is much more expensive than ordinary cosmetics. If it is not a special skin, there is no need to choose. However, if conditions permit, it is still very good for the skin to use these mild and non-irritating cosmetics with auxiliary therapeutic effects.

Matters needing attention in choosing skin care products:

1, you must look at its trademark before buying skin care products. If it is indicated that it is suitable for normal to dry skin, it means that it is for dry skin, and normal skin can also be used; If the trademark says it is suitable for oily skin, it is suitable for oily skin; If it is not marked on the trademark, you have to try it or look at the composition description of the product.

Drop two drops on the back of your hand first. If it dries as soon as it is wiped, it means that it is an oil-in-water facial care product, which can protect the skin from external humidity and temperature changes, regulate oil secretion, prevent skin aging, and is suitable for oily skin. Apply a little cream skin care product on the back of your hand. If it is not easy to dry and has light, it belongs to "water-in-oil" skin care products, which can prevent dry skin and moisturize skin, and is suitable for dry skin.

2. If you can't try it out, you can read the instructions in detail. If the instructions say hydrating, nourishing, nourishing, removing spots, removing wrinkles and moisturizing, it must be used for dry skin, because dry skin needs nutrition. On the other hand, if the instructions are written to regulate oil secretion and remove blackheads, acne and acne, it must be used for oily skin, because oily skin is prone to acne and acne. If you have two effects, you can use it on any skin.

3. See if it is a cream skin care product (also called vanishing cream). It uses oil, glycerin water and essence as raw materials and potassium soap as emulsifier. After emulsification, oil and water form a white emulsion, which constitutes a non-oily emulsion, which is most suitable for oily skin. Cream skin care products, also known as cold cream and balsam, are a kind of "water in oil", that is, emulsion in which water is dispersed in oil, contrary to cream cosmetics. A lot of oil and moisture can supplement the deficiency of dry skin, so it is suitable for dry skin.

4. Some honey skin care products are also called emulsions, which are semi-fluid liquid emulsions with slight oiliness, and most of them are "oil-in-water" emulsions, including cleaning honey, moisturizing honey, almond honey and lemon honey. After using this kind of skin care products, with the gradual evaporation of water, the skin surface is kept moist to a considerable extent to prevent skin dryness, and it can be used on any skin. There is also a kind of water-based skin care products, such as make-up water, beauty lotion and shrink water, which are generally suitable for dry skin.

Some acidic skin care products are acidic, which can astringe the skin and inhibit sweat and skin secretion. They are suitable for summer or oily skin and neutralize alkaline skin. Acidic skin care products can also diminish inflammation and sterilize.