La Roche-Posay K Lotion Ingredients La Roche-Posay K Lotion Efficacy and Function

La Roche-Posay K-Emulsion is very effective in removing acne. It can be used every morning and evening after cleansing the face. It is mainly used to inhibit acne and prevent acne scars. It is La Roche-Posay’s star product for removing acne and blackheads.

In addition to the classic La Roche-Posay hot spring water, this La Roche-Posay K Lotion also contains octanoyl salicylic acid, antibacterial factors, moisturizing factors, vitamin A linoleic acid and other ingredients that are effective against acne. It has high safety and avoids skin irritation caused by too complex ingredients.

1. Does not contain commonly used preservatives.

As a newbie, you must know that preservatives are an important allergen in skin care products. This product does not contain any commonly used preservatives! So, what is used for preservatives? I have to praise that the preservative system of the formula is well designed. Polyol + salicylic acid + capryloyl salicylic acid has an effective preservative effect. Here, I would like to focus on salicylic acid, which has a higher activity against yeast and mold than anti-fungus, and mainly attacks the plasma membrane and inhibits the enzyme system.

2. Contains fragrance.

Fragrance is not a single ingredient, but usually a combination of multiple undisclosed ingredients. The American EWG agency considers it a high-risk ingredient, mainly because fragrances and flavors are one of the main allergens in cosmetics, with thousands of varieties, and regulations allow their ingredients to be undisclosed. Long-term cumulative use of fragrances poses a potential risk to skin and human health, but the degree of harm depends on the grade of the fragrance, the added content, and individual differences in the human body. For a skin care product containing 24 ingredients, various chemical raw materials have various chemical smells... As a formulator, the smell of chemical raw materials is innate, and we have no way to remove it. As a user, most people like the smell of fragrance rather than the strange smell of chemicals. Then the common practice is to add fragrance, first to cover up the unpleasant smell, and second to increase the unique fragrance of the product.

3. Contains salicylic acid and capryloyl salicylic acid. This is why the product dares to claim to "clear acne, cleanse skin and rejuvenate skin".

Salicylic acid

It is the main ingredient of over-the-counter products (ingredients, in this sense, if you have acne, you should go to the hospital and take medicine under the guidance of a doctor). Salicylic acid is the main active ingredient in a large number of classic acne-removing products. Salicylic acid is oil-soluble and can penetrate into the lipid-rich pores, the accumulated acne dirt in the pores, loosen the acne plugs, and play some roles at the same time. It is an active ingredient and can be used in cleansers, softeners, and creams.

Capryloyl salicylic acid

It is a derivative of salicylic acid with a lipid chain. Compared with keratin-dissolving ingredients such as salicylic acid and ordinary AHA, it can penetrate into the stratum corneum more easily, loosen the joints between cells one by one, and thus exert a more effective micro-exfoliation effect (it will make the epidermis thinner and reduce the skin's defense function, so it is not recommended for sensitive skin), making the skin more delicate and smooth, and blemishes are significantly improved.

4. Contains PCA zinc, silica, perlite, and silica silylate.

PCA Zinc

Oil-controlling ingredients regulate sebum secretion and reduce the activity of lipase, which can produce results in a short time. It also has moisturizing and antibacterial properties.

Silica, Perlite, Silica Silylate

Powdered products are mainly used as opacifiers, adsorbents (porous powders that can absorb skin oil), and skin feel regulators. They have a slight concealing effect and can increase skin smoothness.

This K-cream can remove acne on oily skin, solve skin problems such as large pores and blackheads, and can also control oil and resist oxidation. If used for a long time, it can also prevent acne. Although this K-cream is said to be very gentle, it will still be a little irritating for very sensitive skin. The price of this K-cream is relatively high. If you use it every day, it will be used up quickly, but if you only use it occasionally on acne, it can still be used for a long time. However, given its excellent acne and blackhead removal effects, this K-cream is still a good value for money.

K-Emulsion can be used on the whole face. It can treat blackheads and whiteheads and unclog pores. So if you have a few pimples on your whole face, don't think the product is bad and don't be too scared!!! I mainly use it on the sides of my nose and face where I have large pores, blackheads and closed comedones. Use it before lotion as an essence. After two weeks of use, I can feel that my pores have become smaller!!! It is also very effective for closed comedones!! I really feel the effect of removing closed comedones, but I don't feel much blackheads. I usually rely on cleansing masks for blackheads. In general, I really recommend K-Emulsion for removing closed comedones.

When I first bought it, the salesgirl told me that it was acidic, so I only used a pea-sized amount each time. Later, I found that this had no effect at all. Just like sunscreen, K-milk will not work if you use less. If you still use a pea-sized amount, you can try to apply more. Although it will turn red at first, this is the effect of removing the acid. After applying it, pat the skin to absorb it. After a few days, you will find that the skin is much smoother. K-milk can treat closed comedones for me. The main thing is to persist. If you use it for one or two weeks and then stop, you will not see the effect. If you use it for a few more weeks, there will definitely be improvements. Finally, I wish all the fairies have smooth and tender skin.