Glycerin is a naturally derived humectant—a ingredient that draws moisture from the air into your skin. It's one of the most widely used and well-studied moisturizing agents in skincare, helping skin feel softer and more hydrated.
Benefits
Attracts and retains moisture in the skin
Improves skin hydration and softness
Helps strengthen skin barrier function
Suitable for most skin types, including sensitive skin
Science: The Cosmetic Ingredient Review Expert Panel concluded glycerin is safe as used in cosmetics across all concentrations. Research shows glycerin effectively improves skin hydration and is well-tolerated with minimal irritation risk. It is also referenced in clinical guidelines for managing inflammatory skin conditions and maintaining skin integrity.
Citric acid is a naturally occurring organic acid commonly used in skincare products as an exfoliant and pH balancer. It belongs to a group of ingredients called alpha-hydroxy acids (AHAs) that help remove dead skin cells from the surface.
Benefits
Gentle exfoliation to improve skin texture and appearance
Helps reduce the appearance of keratosis and acne
Balances product pH to maintain skin compatibility
Potential concerns
Can cause irritation, redness, or sensitivity in some users, especially with prolonged or frequent use
May increase sun sensitivity — sunscreen use is recommended when using AHA products
Not suitable for very sensitive or compromised skin without caution
Science: Citric acid is an established AHA used in cosmetics for superficial peeling and skin appearance improvement, though research emphasizes that caution should be exercised due to potential adverse reactions. It is widely produced industrially and well-established in skincare formulations.
Sodium dehydroacetate is a synthetic preservative used in skincare products to prevent bacterial and fungal growth, extending shelf life. It's a salt form of dehydroacetic acid and is widely used across cosmetics, foods, and personal care items.
Benefits
Prevents microbial contamination and product spoilage
Extends product shelf life without refrigeration
Allows formulations to remain stable over time
Potential concerns
May cause allergic contact dermatitis in sensitive individuals
Limited data on long-term skin effects in humans at cosmetic concentrations
Science: The Cosmetic Ingredient Review Panel has deemed sodium dehydroacetate safe as used in cosmetics (most recent affirmation in 2024). However, animal studies show it can affect cellular respiration at high concentrations; human skincare studies at approved usage levels are limited. Rare cases of allergic contact dermatitis have been documented.
Olive fruit oil is a natural oil extracted from olives, rich in fatty acids and antioxidants. In skincare, it works as a moisturizer and emollient that helps soften and hydrate the skin by creating a protective layer on the surface.
Benefits
Moisturizes and hydrates dry skin
Provides antioxidant protection
Softens and smooths skin texture
Potential concerns
May cause comedogenic reactions in acne-prone individuals
Potential for allergic contact dermatitis in sensitive people
Can leave a greasy residue on some skin types
Science: Olive oil is well-established in traditional skincare and cosmetic formulations. It contains oleic acid, squalene, and polyphenols known for emollient and antioxidant properties, though robust clinical studies specifically on cosmetic-grade olive fruit oil in skincare products are limited.
This is a liquid extract made by fermenting daikon radish with Leuconostoc bacteria. It functions primarily as a natural preservative in skincare products, helping prevent bacterial and microbial growth to extend shelf life.
Benefits
Natural preservative that helps prevent bacterial contamination
May have mild antimicrobial properties on skin
Derived from fermented ingredients, appealing to 'clean beauty' preferences
Potential concerns
Salicylic acid content may cause irritation or dryness in sensitive skin
Potential allergic reactions in individuals sensitive to radish or fermentation byproducts
Limited safety data at typical cosmetic concentrations
Science: Research shows this ingredient's antimicrobial activity comes from salicylic acid (active against Gram-negative bacteria) and didecyldimethylammonium salts (active against Gram-positive bacteria), rather than from fermentation-produced compounds as traditionally claimed. However, peer-reviewed data on its safety and efficacy specifically in skincare formulations at cosmetic use levels is limited.
