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.
Triethyl Citrate is a clear liquid derived from citric acid that acts as a plasticizer and preservative in skincare formulations. It helps keep products flexible and stable while extending shelf life.
Benefits
Improves product texture and spreadability
Extends product stability and shelf life
Helps preserve formulation integrity
Potential concerns
Emerging research suggests potential neurotoxic concerns at high environmental exposure levels, though current cosmetic-use concentrations are considered safe by regulatory bodies
Science: The Cosmetic Ingredient Review Expert Panel (2023) confirmed safety at typical cosmetic concentrations and use levels. However, a 2025 molecular study identified potential interactions with proteins related to cell health and inflammation, warranting further investigation into long-term safety—though this represents theoretical risk rather than documented harm in cosmetic use.
Butyloctyl Salicylate is a conditioning agent derived from salicylic acid (the same compound used in acne treatments). In skincare products, it works as a skin and hair conditioning ingredient, helping to soften and smooth the skin's surface at typical use levels of 0.5–5%.
Benefits
Conditions and softens skin
Improves skin texture and smoothness
Lightweight conditioning without heavy residue
Potential concerns
May cause irritation or sensitization in formulations that are not properly balanced
Some salicylates are absorbed through the skin; long-term effects of topical absorption are not extensively documented
Science: The Cosmetic Ingredient Review Expert Panel (2025) concluded that Butyloctyl Salicylate is safe in cosmetics at current use levels when formulated to be non-irritating and non-sensitizing. The ingredient has low acute toxicity via dermal exposure, though around 10% of applied salicylates may remain in the skin.
Meadowfoam seed oil is a lightweight plant oil extracted from meadowfoam seeds, prized for its exceptional stability and rich fatty acid profile. It absorbs quickly into skin while providing moisture and a silky feel, making it a popular choice in premium skincare formulations.
Benefits
Deep moisturizing without heavy greasy residue
Improves skin barrier function
Rich in fatty acids and antioxidants
Excellent oxidative stability compared to many other plant oils
Science: Limited peer-reviewed data available for this ingredient. Traditional use and cosmetic industry data suggest excellent safety and skin tolerance, with a composition dominated by long-chain fatty acids (C20-C22) that support skin hydration and protection.
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.
Ethylhexyl Methoxycrylene is a UV filter used in sunscreens and other sun-protective products to absorb ultraviolet (UV) light and prevent it from damaging your skin. It helps protect against sun-induced aging and skin damage by converting UV rays into harmless heat.
Benefits
Provides broad-spectrum UV protection
Helps prevent sunburn and photoaging
Commonly used in lightweight, non-greasy sunscreen formulations
Potential concerns
May cause skin irritation or allergic contact dermatitis in sensitive individuals
Potential for bioaccumulation; some regulatory bodies restrict concentration limits
Can degrade when exposed to sunlight, reducing effectiveness over time
Science: Limited peer-reviewed data available for this ingredient. It is approved for use in sunscreens in multiple countries but is restricted in concentration (typically 10% or less) due to bioaccumulation concerns. Some studies suggest it may have endocrine-disrupting potential, though human exposure risk at typical use levels remains unclear.
Camelina sativa seed oil is a plant-based oil extracted from camelina seeds, rich in omega-3 and omega-6 fatty acids. It's used in skincare products to moisturize and nourish the skin, helping to maintain the skin barrier and reduce dryness.
Benefits
Moisturizes and hydrates skin
Rich in fatty acids and antioxidants
May help soothe irritated or sensitive skin
Potential concerns
Potential allergic reactions in those with seed oil sensitivities
May cause breakouts in acne-prone individuals
Science: Limited peer-reviewed data available for this ingredient in cosmetic applications. General knowledge of plant oils suggests camelina's fatty acid profile supports skin barrier function, but specific efficacy and safety studies in skincare formulations are sparse.
Polyester-8 (also known as Polycrylene®) is a synthetic polymer used in skincare and sunscreen products primarily as a film-forming agent and texture enhancer. It helps create a smooth, long-lasting coating on the skin.
Benefits
Creates a protective film on skin surface
Improves product texture and spreadability
Enhances product longevity and wear time
Potential concerns
Potential for allergic contact dermatitis in sensitive individuals
May cause skin reactions in people with polymer sensitivities
Science: A 2012 case report documented allergic contact dermatitis caused by polyester-8 in a sunscreen moisturizer, indicating that while generally well-tolerated, this ingredient can trigger allergic reactions in susceptible individuals. Limited additional peer-reviewed safety data is available.
Rapeseed seed oil is a plant-derived oil extracted from rapeseed plants, commonly used in skincare as a moisturizing and nourishing ingredient. It helps soften and hydrate the skin while providing emollient properties to improve product texture.
Benefits
Moisturizes and hydrates skin
Provides emollient properties for smoother feel
Contains fatty acids that support skin barrier function
Potential concerns
May cause comedogenic effects in acne-prone individuals
Potential allergic reactions in those with sensitivity to brassica plants
Can feel heavy or greasy on sensitive or oily skin types
Science: Limited peer-reviewed data available specifically for this ingredient in cosmetic applications. General knowledge of plant seed oils suggests rapeseed oil is well-tolerated in skincare formulations and contains linoleic acid and oleic acid, which support skin health.
Ethyl ferulate is a plant-derived compound that belongs to a family of antioxidants called phenylpropanoids. In skincare, it works to protect skin from free radical damage and may help reduce inflammation.
Benefits
Antioxidant protection against environmental stress
Anti-inflammatory properties
May support skin barrier health
Science: Research indicates ethyl ferulate has antioxidant and anti-inflammatory activity. However, most published studies focus on pharmaceutical and neuroprotective applications rather than topical skincare efficacy, so direct evidence of benefits when applied to skin remains limited.
