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.
Sorbitol is a naturally derived humectant (moisture-binding agent) that helps skin retain water and stay hydrated. It's a sugar alcohol commonly used in skincare products to improve texture and maintain moisture levels.
Benefits
Draws moisture into the skin for enhanced hydration
Helps improve skin texture and smoothness
Gentle humectant suitable for most skin types
Science: Limited peer-reviewed data available specifically for sorbitol in topical skincare applications. Research shows sorbitol functions effectively as a humectant and moisture-retaining agent in formulations, with a well-established safety profile in cosmetic use.
Portulaca oleracea extract comes from purslane, a succulent plant rich in antioxidants and soothing compounds. In skincare, it's used to calm irritated skin, reduce redness, and support the skin's natural barrier function.
Benefits
Reduces redness and visible irritation
Soothes sensitive or inflamed skin
Improves skin hydration and smoothness
Supports skin barrier repair
Science: Clinical studies demonstrate that Portulaca oleracea extract, when combined with other soothing ingredients, significantly improves dryness, roughness, and erythema in sensitive skin over 28 days and aids post-procedure skin recovery. Products containing this extract were well-tolerated with no reported adverse effects.
Chamomile flower extract is a plant-derived ingredient made from the dried flowers of German chamomile (Matricaria chamomilla). It's commonly used in skincare for its soothing and anti-inflammatory properties, making it popular in products designed to calm irritated or sensitive skin.
Benefits
Soothes and calms irritated or inflamed skin
May help reduce redness and sensitivity
Antioxidant properties that help protect skin from environmental stress
Potential concerns
Rare allergic reactions, particularly in people sensitive to plants in the daisy family (ragweed, chrysanthemums)
May cause contact dermatitis in sensitive individuals
Science: Chamomile has been traditionally used for centuries and is well-documented in herbal medicine literature. While robust clinical studies on skincare formulations are limited, the ingredient has established anti-inflammatory and antioxidant properties supported by phytochemical research.
Sodium polyacrylate is a synthetic polymer that absorbs and holds water, creating a gel-like texture. In skincare, it's used as a thickener and moisture-retention agent to improve product consistency and help keep skin hydrated.
Benefits
Absorbs and retains moisture to support skin hydration
Thickens product texture for better application and feel
Creates a smooth, spreadable consistency in formulations
Science: Contact dermatitis research involving multiple UK hospital dermatology centres found that sensitisation to sodium polyacrylate is rare, indicating excellent safety for topical skincare use. The ingredient has also been studied for advanced biomedical applications including wearable sensors, demonstrating its biocompatibility.
Methylparaben is a preservative used in skincare and cosmetic products to prevent bacterial and fungal growth, extending shelf life. It's one of the most commonly used preservatives in the beauty industry and has been approved for use in cosmetics across most regulatory regions.
Benefits
Prevents microbial contamination and product spoilage
Allows products to remain safe and effective throughout their shelf life
Cost-effective preservation at low concentrations
Potential concerns
Classified as a potential carcinogen in recent literature reviews; however, regulatory bodies consider approved concentrations safe
Some studies suggest parabens may have weak estrogenic activity, though real-world risk at cosmetic-use levels remains debated
May cause contact sensitivity or allergic reactions in individuals with paraben sensitivity
Science: A 2023 review identified methylparaben among potential carcinogenic substances in analyzed cosmetics, though the authors note these are used 'within allowable range of established concentrations.' Current EU and regulatory approval suggests approved concentrations are considered safe for consumers, but long-term exposure studies at cosmetic levels remain limited.
Xylitol is a naturally occurring sugar alcohol that functions as a humectant in skincare, helping to draw moisture into the skin and maintain hydration. It has been safely used in cosmetics, food, and pharmaceuticals for over 50 years.
Benefits
Hydrates and moisturizes skin by drawing water into the outer layers
Gentle humectant suitable for sensitive skin types
Does not trigger rapid blood sugar spikes like regular sugar
Science: Xylitol is endogenously produced in the body and has an established safety history spanning decades of use across multiple industries. Recent cardiovascular research found no significant risk links in clinical studies, though some pilot trials suggest temporary platelet effects at very high doses—irrelevant to topical skincare application.
