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Using retinol may cause skin reactions that have not been easily seen in other ingredients. Depending on the skin type, skin reactions such as stinging, burning, skin peeling, and redness may occur. These skin reactions are phenomena that can occur when retinol works effectively on the skin. This is not a phenomenon that occurs in all skin and can be disappeared after enough period of adaptation. It is recommended that you pay more attention to your skin condition while using retinol. In simple language, it means that retinol derivative needs at least 4 times the amount of retinol to obtain certification for wrinkle improvement effect in Korea.
Depending on your skin type and tolerance, you can follow the standard retinol application protocol when first starting a retinol product: I don’t notice a huge difference in moisture levels of my skin compared to a 2% hyaluronic acid serum, but I do like the lightweight texture, which easily allows it to be layered with other serums. Tocopherol: The pure form of vitamin E, tocopherol is an antioxidant that helps to protect the skin from environmental stressors. We noticed that COSRX doesn’t use just one key ingredient throughout their collection of skincare products. Rather, COSRX skincare products contain a variety of beneficial ingredients. Let’s take a closer look at the key ingredients you’ll find in each of the best selling COSRX skincare products we introduced above. Also known as Hydroxypinacolone Retinoate (HPR), Granative Retinoid technology works by activating the retinoid receptor on your skin cells without causing the irritation that typically comes along with retinol.
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Tocotrienol: Known as “super vitamin E”, this compound offers up to 50x greater antioxidizing effect than tocopherol (vitamin E). Acetyl Glucosamine: This natural moisturizing factor helps keep the skin hydrated. It also fades dark spots and hyperpigmentation. Reference] An Advanced, Physician-Strength Retinol Peel Improves Signs of Aging and Acne Across a Range of Skin Types Including Melasma and Skin of Color, JDD, 2019, 1;18(9):918-923.
Adenosine: Adenosine is a yeast-derived ingredient that has anti-wrinkle and skin-restoring properties. As explained earlier, retinol has been used as a skincare ingredient for a long time because of its excellent skin efficacy. However, it is relatively difficult to make high retinol concentration because it is unstable against ultraviolet rays, and the higher the retinol content, the lower the stability.To solve this unstable problem, not only the development of various retinol derivatives but also the techniques for stabilizing retinol are constantly being studied. Please note: the source of squalane is only known if disclosed by the brand. We recommend reaching out to the brand if you have any questions about their squalane. COSRX Centella Blemish Cream is a mild, soothing cream formulated for those with acne-prone and troubled skin. The key ingredients in this facial cream include Centella asiatica leaf water and zinc oxide. Together, these ingredients hydrate skin while reducing inflammation inside the pores. We’ll explain more of the benefits of Centella asiatica in the next section. Sodium hyaluronate is the salt form of hyaluronic acid that has been shown to have better skin penetrating capabilities than hyaluronic acid alone. Similar to panthenol, sodium hyaluronate functions as a humectant by drawing moisture into the skin. Lastly, COSRX Hyaluronic Acid Intensive Cream contains emollients like caprylic/capric triglyceride, sunflower seed oil, and macadamia seed oil to help the skin feel soft and smooth.The retinol cream is formulated with 0.1% pure retinol for low irritation. The cream also helps to improve skin elasticity and texture while fading acne scars and preventing future acne and breakouts. Squalane comes from squalene, which occurs naturally within the sebum of our skin. It is one of the oils our skin produces to keep itself hydrated. Squalane is the hydrogenated version of squalene and has a longer shelf life. COSRX The Niacinamide 15 Serum contains a high 15% concentration of niacinamide for what COSRX calls “total acne control.”
This retinol oil is best suited for those who have used retinol before and have acclimated their skin to retinol (i.e., intermediate retinol users). I consider myself to be only an intermediate retinol user because, while I can use retinol at concentrations above 0.1% without irritation, stronger formulas tend to cause irritation.
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Squalane is a saturated hydrocarbon similar to squalene (with an e) that is naturally found in our skin. Retinol can cause side effects skin irritations, erythema, skin peeling. It is recommended to use a small amount every other week during an adjustment period then increase it gradually. Retinol is best applied at night when your skin’s repair and regeneration process takes place. If you are new to retinol, it is recommended to pair it with soothing, gentle ingredients like centella asiatica, collagen, snail mucin, ceramides or hyaluronic acid to provide your skin with some ‘buffer’ as the retinol is not directly touching your skin. At the same time, it helps prevent tingling sensation during the initial use. Squalane: Squalane, a saturated hydrocarbon, is naturally found in the skin in the form of squalene. It has exceptional emollient properties that help to soften and condition the skin without clogging pores. Squalane is non-irritating, non-comedogenic, and suitable for all skin types.
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