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Ingredient
Antioxidant,  Vitamin,  Whitening, 

Ascorbic Acid

Best

Ascorbic acidŠ—”also known as L-ascorbic acidŠ—”has the most research of any form of vitamin C when it comes to benefits for skin. It is a potent antioxidant and skin-soothing agent that can improve the appearance of signs of aging.

Emollient,  Silicone, 

Dimethicone

Good

A type of silicone, dimethicone is one of the most frequently used emollient ingredients in moisturizers due to its gentleness and effectiveness. Dimethicone is considered a synthetic ingredient, even though itŠ—Ès derived from natural silicon.

Cleansing Agent,  Emollient,  Silicone,  Surfactant, 

PEG-10 Dimethicone

Good

Silicone,  Texture Enhancer, 

Polysilicone-11

Good

Specialized, synthetic cross-linked siloxane (a type of silicone) that functions as a film-forming agent. The film left behind has water-binding properties and leaves a smooth feel on skin.

Topical Vitamin C offers a wide array of benefits to the skin. However, many forms of Vitamin C and many more formulations of Vitamin C are available commercially with a potential to confuse the audience. We have developed a guide that offers guidance on the formulations of Vitamin C offered under The Ordinary range. It also offers education on Vitamin C itself and on the differences between formulations of Vitamin C at large. Please click here for this guide.

Note: The format of this formula is a suspension of very fine L-Ascorbic Acid powder and, as such, provides the most direct exposure of extremely high concentrations of Vitamin C topically. With such format, a very strong tingling but non-irritating sensation is expected during the first 1-2 weeks of use until the skin's tolerance to such high exposure is elevated. If the sensation is too strong to tolerate, the formula can be mixed on each application with other creams or serums of your preference.

Alternative products on the market offer suspensions of Vitamin C in water-free formulations in heavier silicone bases. These formulations do keep the Vitamin C stable but they are almost always offered in heavier silicone bases that interfere with efficient exposure of the entire Vitamin C content to the skin (the silicone entraps the Vitamin C). Our formula avoids the use of heavy silicones to offer better exposure to the Vitamin C content. However, please note that this formulation would still offer slightly less efficient exposure to Vitamin C than our silicone-free Vitamin C Suspension 23% + HA Spheres 2% formula. The additional Vitamin C content (30%) in this silicone base helps offset the slight impairment to dermal exposure.

Directions:
Apply a small amount to face in the AM or the PM (PM preferred). A tingling sensation can be expected after application. If this sensation is too strong, this formula can be diluted on each application with your favourite serum or cream.

Allergic ingredients not found