PDRN Hyaluronic Acid Capsule 100 Serum

The base most products are built on. It carries the other ingredients and has no safety concern.

A lightweight humectant and solvent similar in role to propylene glycol, used to carry actives and give lotions a lighter feel. CIR has reviewed it and considers it safe as used in cosmetics.

A corn-derived solvent and humectant that has largely replaced propylene glycol in "clean" formulas; CIR reviewed the alkane diol group and found use concentrations up to about 40 percent in leave-on products like deodorant sticks with no meaningful irritation signal.

A humectant that draws water into the skin. One of the best-studied, best-tolerated ingredients in personal care.

A broken-down form of hyaluronic acid with smaller molecules intended to penetrate more deeply into the skin. It functions as a humectant and is well tolerated, with the same safety profile as standard hyaluronic acid.

A glycol used very widely in Korean and Western skincare as a lightweight humectant, solvent, and gentle preservative-booster, often in place of traditional preservatives. It has a low reported irritation rate at use levels and is graded low concern in published assessments.

A form of vitamin B3 used to support a more even-looking tone and a comfortable barrier. Well tolerated at cosmetic levels.

A plant-derived emollient and emulsifier made from glycerin and oleic acid, typically from olives or canola. Softens skin while stabilizing oil-water formulas; well tolerated at typical use levels.

A sugar-derived, biodegradable cleansing surfactant made from coconut/palm fatty alcohol and glucose; it is markedly gentler than sulfates and is the workhorse of "sensitive skin" or fragrance-free cleansers. CIR reviewed it with other alkyl glucosides and found it safe as used when the finished product is formulated to be non-irritating.

A mild plant-derived emulsifier combining polyglycerol and lauric acid. Used in gentle formulas to blend oil and water phases; well tolerated across skin types at cosmetic concentrations.

A phospholipid emulsifier from soy or sunflower that binds water and oil and helps other ingredients absorb. It is a natural component of skin membranes, well tolerated, and reviewed as safe as used; a soy-derived grade is not a meaningful concern for a soy food allergy because the protein is largely absent.

A humectant that holds water at the skin surface for a more hydrated look. No safety concern.

A naturally occurring nucleoside used in anti-aging formulas, often marketed for smoothing the look of fine lines. It has a low irritation profile and no established hazard at cosmetic use levels.

Sodium PCA is a natural component of skin's own moisturizing factor and is used in cosmetics as a humectant to help skin hold onto water. It has an extensive history of safe use with no meaningful irritation or sensitization signal.

A lower molecular weight version of hyaluronic acid designed for better skin penetration. It has been extensively studied and shown to support skin hydration and barrier function with excellent tolerability in diverse formulations and skin types.

A quaternized derivative of hyaluronic acid that combines hydration and film-forming benefits for enhanced moisturizing effects. It is documented in cosmetic use as well tolerated, though people sensitive to quaternary ammonium compounds may want to perform a patch test.

A chemically cross-linked form of sodium hyaluronate designed to remain on the skin surface longer and provide sustained hydration. It functions as a humectant and is well tolerated, with the same safety profile as standard hyaluronic acid.

A chemically modified form of hyaluronic acid that improves stability and penetration in skincare formulations. Clinical assessments show it hydrates skin effectively and is well tolerated across sensitive and normal skin types.

Used in tiny amounts to set a product to skin-friendly pH. No concern at those levels.

An extract from turmeric root valued for its antioxidant and skin-conditioning properties. It is well tolerated at cosmetic levels, though some sources note rare phototoxicity potential; formulation practices mitigate this.

An extract from red algae valued for its humectant and antioxidant properties. It is well tolerated and commonly used in marine-based skincare formulations.

A salt derived from citric acid that buffers pH and prevents metal oxidation in formulas. Widely used in food and cosmetics, it is well tolerated at cosmetic concentrations.

Pentylene glycol is a humectant and solvent that also offers mild antimicrobial support in formulas. It is generally well tolerated, with only rare reports of irritation, mostly in already sensitive or compromised skin.