1, components of Kiehl's vitamin C firming essence emulsion
Contains two yellow components: propylene glycol and cyclic pentadimethicone.
1, 2- propanediol is a small molecule moisturizing ingredient, which is derived from propylene oxide from petrochemical sources. It is a kind of polyol, almost colorless, tasteless, greasy, completely soluble in water, and also has antiseptic effect. Propylene glycol can also be used as a slip agent, which has strong permeability and can enhance the absorption of other ingredients by the skin, but when used as a moisturizing agent, the water absorption rate is not high. The amount of propylene glycol added is controversial. In general cosmetics, the proportion of propylene glycol added will not exceed 5%, and a few people will feel tingling and burning after using it. The FDA believes that propylene glycol is a safe cosmetic ingredient, but it is best to avoid using it for sensitive skin, and healthy skin should not worry too much.
Cyclopentadiene is a synthetic silicone oil, which is widely used in cosmetics and human care products. This ingredient is colorless, odorless and volatile. It is often added to essence, lotion, foundation, pre-makeup milk and conditioner, which can produce a silky feeling. D5 has a large molecular weight and is volatile, so it cannot be absorbed by the skin.
The ingredients are all added within a safe range, so you can use them with confidence!
2. How to use Kiehl's Vitamin C Firming Essence Emulsion? Fever and microneedle-like skin sensation may appear at the initial stage of use, which is due to the active absorption of pure vitamin C, and will disappear after continuous use.
? It is recommended to use it with 3-3-3, rubbing it to help absorption and relieve the feeling of needling.
Squeeze 3 mung bean-sized 12.5% high concentration vitamin C.
The essence is at three fingertips, and you can feel the slight hot skin feeling of pure levo-vitamin C by gently rubbing it at the fingertips for three times.
Apply it to forehead, cheeks and chin from bottom to top in a circular motion until it is absorbed.
3. Q&A on Kiehl's Vitamin C Firming Essence Emulsion What are the advantages of the formula of patented polyol -VC technology?
Kiehl's Vitamin C Firming and Brightening Essence Emulsion adopts polyol -VC (polyol suspension microcapsule) technology. Polyol replaces the water in the traditional formula with the inclusion compound of high concentration vitamin C and solid hyaluronic acid molecules, creating a completely anhydrous environment for the active ingredients and forming independent suspended microcapsules, thus ensuring the deep penetration of vitamin C molecules and exerting its efficacy.
Why do you feel oily, feverish and pricked with essence?
Because this essence uses a completely anhydrous oil phase system, it is inevitable that oil skin will appear; Fever and tingling come from the absorption process of vitamin C wrapped in polyol, which contacts with water and penetrates into the skin. When combined with 3-3-3 manipulation, the discomfort can be alleviated and gradually disappear with the extension of the use cycle.
4, Kiehl's Vitamin C Firming Essence Emulsion Expert Anti-oxidation Seminar has excellent resistance to skin aging and dullness.
10.5% L- vitamin C and 2% vitamin C, this combination of high concentration vitamin C can promote collagen regeneration, reduce the damage of free radicals to the skin, and effectively help improve pores and delicate skin. Combined with precise formula, it is helpful to improve the problem of aging and dullness of young people's skin.
Vitamin C is a good antioxidant.
Vitamin C is a good antioxidant, which can effectively resist aging and improve fine lines. Increasing the concentration of vitamin C for external use to 12.5% may cause slight tingling and burning sensation on the skin. This is because everyone's skin has different tolerance to vitamin C, which is a normal reaction.