Squalane is a lightweight, skin-identical oil derived from squalene (a natural component of human sebum). It absorbs easily into the skin to lock in moisture and create a smooth, soft feel without leaving a greasy residue.
Benefits
Hydrates and moisturizes skin
Mimics skin's natural oils for better compatibility
Lightweight emollient that doesn't clog pores
Antioxidant properties
Well-tolerated by most skin types
Science: The Cosmetic Ingredient Review Expert Panel confirmed squalane is safe for cosmetic use at typical concentrations (2023). Research demonstrates skin hydrating and emollient activity, and squalane is naturally present in human sebum at ~13%, making it biocompatible with skin.
Maltodextrin is a carbohydrate derived from starches like corn or potato. In skincare, it's used as a filler, thickener, and texture agent — it has no direct active benefit for skin itself.
Science: Maltodextrin is an inert, non-toxic carbohydrate commonly used as a placebo control in clinical nutrition studies, indicating excellent safety and tolerability. No adverse effects on skin health or systemic absorption concerns have been documented.
Coconut oil is a natural fat extracted from coconut fruit, composed primarily of saturated oils. In skincare, it acts as a moisturizer and skin conditioner, helping to soften and hydrate the skin.
Benefits
Moisturizes and conditions the skin
May support skin barrier repair
Possesses antimicrobial and antioxidant properties
Generally accessible and affordable
Potential concerns
High in oleic acid, which may be irritating or potentially disrupt the skin barrier in some individuals
Comedogenic for some people — may clog pores and trigger breakouts
May cause contact dermatitis or allergic reactions in sensitive individuals
Science: Coconut oil is deemed safe as a cosmetic ingredient by the Cosmetic Ingredient Review panel. However, research indicates that oils with higher oleic acid content (like coconut oil) have weaker barrier-repair benefits compared to oils with higher linoleic acid ratios, and may even be detrimental to skin barrier function in some cases.
Shea butter is a natural fat extracted from the nuts of the shea tree, native to Africa. In skincare, it works as a moisturizer and conditioning agent, helping to soften and protect the skin by forming a protective barrier.
Benefits
Deep moisturizing and hydration
Skin conditioning and softening
May help reduce appearance of dry patches
Potential concerns
May cause sensitization in some individuals—formulations should be tested for non-sensitizing properties
Quality varies depending on processing; impurities in poorly processed shea butter could be a concern
Science: A 2024 safety assessment by the Cosmetic Ingredient Review Expert Panel concluded that shea-derived ingredients are safe at current concentrations and practices of use when formulated to be non-sensitizing. The Panel noted that formulators should be aware of similar constituents in other botanical ingredients to avoid hazardous levels when combined, and should use good manufacturing practices to limit impurities.
Beeswax is a natural wax secreted by honeybees, used in skincare as a protective barrier ingredient. It helps lock in moisture, soften the skin, and create a breathable shield on the skin's surface.
Benefits
Reduces water loss from skin (occlusive barrier)
Locks in hydration and soothes dryness
Softens and conditions skin
May help with irritated skin conditions like dermatitis and psoriasis
Natural, low-cost ingredient
Potential concerns
Potential for contact allergy in sensitive individuals or those with bee product sensitivities
May feel heavy or occlusive for very oily or acne-prone skin types
Science: Clinical studies demonstrate beeswax supports skin barrier function and helps alleviate symptoms of common skin conditions like dermatitis. However, the evidence base is limited with only five clinical studies reviewed in recent literature, and contact allergy remains a documented concern for some individuals.
