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Long Wear Brow & Freckle Tint STAY-N
Ingredients
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Analysis not yet available for this ingredient.
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Butylene glycol is a humectant—a type of ingredient that draws water into the skin and helps it stay hydrated. It's a small, lightweight molecule commonly used in moisturizers to improve hydration without leaving a heavy feel on the skin.
Benefits
- Increases skin hydration and moisture retention
- Lightweight and absorbs quickly
- Helps other active ingredients penetrate the skin more effectively
Science: Research demonstrates that butylene glycol, when combined with other humectants (like glycerin and hyaluronic acid) and occlusive ingredients in moisturizers, significantly improves skin hydration in both healthy skin and compromised skin conditions such as atopic dermatitis. It is recognized as a safe, effective humectant in dermatological formulations.
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BHT (butylated hydroxytoluene) is a synthetic antioxidant used in skincare products to prevent oils and other ingredients from oxidizing and going rancid. It's used at very low concentrations (0.0002% to 0.5%) to extend shelf life.
Benefits
- Prevents product degradation and extends shelf life
- Keeps formulations stable over time
- Allows use of beneficial oils without them spoiling
Potential concerns
- Can cause skin irritation or allergic reactions in sensitive individuals at higher concentrations
- May cause mild contact sensitization in some people
- Minimal systemic absorption when applied to skin, but oral ingestion studies show potential liver and kidney effects at high doses
Science: The Cosmetic Ingredient Review Expert Panel concluded BHT is safe as used in cosmetic formulations at typical concentrations. When applied to skin, BHT remains largely in the skin with minimal systemic absorption, unlike oral exposure which showed some toxic effects in animal studies at high doses.
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Phenoxyethanol is a preservative that prevents bacteria, yeast, and mold from growing in skincare products, helping them stay fresh and safe to use. It has been used safely in cosmetics for decades and is effective at very low concentrations.
Benefits
- Prevents microbial contamination and product spoilage
- Broad-spectrum antimicrobial activity against bacteria and yeast
- Minimal impact on beneficial skin bacteria when used at approved levels
Potential concerns
- Rare allergic contact dermatitis in sensitive individuals
- May cause irritation if used in products at concentrations above 1%
Science: The European Scientific Committee on Consumer Safety considers phenoxyethanol safe for all consumers, including children, at concentrations up to 1%. Adverse effects observed in animal studies required exposure levels approximately 200 times higher than those in cosmetic products, and it is classified as one of the most well-tolerated preservatives in cosmetics.
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Polyisobutene is a synthetic polymer used as an emollient and skin-conditioning agent in moisturizers and creams. It forms a protective layer on the skin that helps lock in moisture and improve texture.
Benefits
- Reduces water loss from skin (by up to 33% in studies)
- Improves skin hydration and moisturization
- Enhances skin texture and smoothness
- Long-lasting moisturizing effect
- Pleasant, non-greasy feel on skin
Science: Clinical research shows hydrogenated polyisobutene significantly increases skin moisture content and reduces transepidermal water loss, with effects maintained for at least 6 hours. It performed 5-10% better than comparable emollient esters in moisturization studies, suggesting strong efficacy with minimal irritation potential.
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Pentylene glycol is a lightweight humectant—a ingredient that draws water into the skin to improve hydration and texture. It's commonly used in serums, sunscreens, and moisturizers as a preservative booster and skin-conditioning agent.
Benefits
- Improves skin hydration by attracting moisture
- Lightweight feel, absorbs quickly without heaviness
- Helps preserve product stability and extends shelf life
Potential concerns
- Rare contact allergy reported in sensitive individuals
- Emerging evidence suggests it may be an uncommon cosmetic allergen—if you have sensitive or reactive skin, patch test first
Science: Safety studies show a high margin of safety at standard use levels (87–671 in adults), with minimal skin penetration due to the ingredient's volatility. However, recent dermatological reports flag pentylene glycol as an emerging contact allergen in some individuals, warranting attention for those with sensitive skin.
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Tocopherol is a form of vitamin E, a fat-soluble antioxidant that protects skin from damage caused by free radicals and oxidative stress. It helps maintain skin's natural barrier function and is commonly used in skincare products to prevent premature aging and support overall skin health.
Benefits
- Protects skin from free radical damage and oxidative stress
- Supports skin barrier function and moisture retention
- May help reduce signs of aging caused by UV exposure and environmental damage
- Works as a lipid antioxidant to prevent degradation of skin oils
Science: Tocopherol (α-tocopherol) is recognized in peer-reviewed research as a key endogenous defense mechanism against oxidative stress in aging skin, particularly from UV-induced damage. Studies confirm it functions as a lipid-soluble antioxidant capable of preventing lipid peroxidation, with established efficacy in cosmetic and therapeutic applications.
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Trimethylsiloxysilicate is a silicone-derived ingredient that forms a lightweight, breathable film on the skin's surface. It's used in cosmetics to improve texture, increase viscosity, and help products spread evenly while providing a smooth, non-greasy finish.
Benefits
- Creates a smooth, silky texture in skincare formulations
- Helps products spread evenly and absorb without a heavy feeling
- Improves product stability and prevents caking in powders
- Forms a breathable film that conditions skin without occluding pores
Potential concerns
- Must be formulated to avoid inhalation exposure during application (particularly in powdered or spray products)
- Potential for respiratory irritation if aerosolized; use in aerosolized products requires careful safety testing
Science: The Cosmetic Ingredient Review Expert Panel concluded that trimethylsiloxysilicate is safe as used in cosmetics when formulated to prevent respiratory irritation. Research demonstrates it creates persistent, non-occlusive skin films suitable for delivery of active ingredients, making it a well-established ingredient in modern skincare formulations.
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Titanium dioxide is a naturally occurring mineral that works as a physical UV filter and opacifying agent in skincare products. It sits on the skin's surface and reflects and scatters UV rays to provide broad-spectrum sun protection, and is also commonly used in foundations and powders to create coverage and a matte finish.
Benefits
- Provides broad-spectrum UVA and UVB protection
- Physical (non-chemical) sun filter suitable for sensitive skin
- Helps create opaque, matte finishes in makeup and tinted products
Potential concerns
- May leave a white cast on darker skin tones due to its opacity
- Can feel slightly heavy or occlusive on very oily skin types
- Rarely, inhalation of airborne powder particles may be a concern in occupational settings, though not in typical consumer use
Science: Titanium dioxide has a long history of safe use in cosmetics and is approved by the FDA, EU, and other major regulatory bodies as a sunscreen active ingredient. It is considered non-toxic and non-penetrating when applied topically in skincare products.
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Iron Oxides (CI 77491) is a naturally derived colorant used to provide red, brown, and yellow tints to skincare and cosmetic products. It's an inert mineral pigment that sits on the skin's surface and doesn't penetrate deeply, making it primarily a coloring agent rather than an active skincare ingredient.
Benefits
- Provides natural color to products without synthetic dyes
- Stable and long-lasting pigment that doesn't fade easily
- Non-toxic mineral alternative to synthetic colorants
Potential concerns
- Minimal risk for most people; however, those with very sensitive skin or metal sensitivities should patch-test first
- Can potentially cause irritation if product formulation is poor or concentration is unusually high
Science: Iron Oxides are widely approved as safe colorants by regulatory bodies including the FDA and EU. Limited peer-reviewed data exists specifically examining consumer skincare use, but decades of cosmetic safety data support their safety profile in topical applications.
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Analysis not yet available for this ingredient.
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CI 77499 is iron oxides (specifically black iron oxide), a mineral colorant approved for use in cosmetics. It's primarily used to add color and pigmentation to skincare and makeup products, and may have mild antioxidant properties.
Benefits
- Provides stable color to products
- Iron oxides are generally well-tolerated on skin
Potential concerns
- Minimal risks for topical use; not an irritant or sensitizer for most people
- May accumulate in pores if used in heavy formulations, though this is rare
Science: Iron oxides are approved colorants in cosmetics by regulatory bodies including the FDA and EU. Limited peer-reviewed data specifically evaluates CI 77499, but iron oxides have a long history of safe use in color cosmetics with no significant safety concerns identified.
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Caprylic/Capric Triglyceride is a lightweight oil derived from coconut that acts as an emollient and helps formulations blend smoothly. It softens skin and reduces water loss by creating an occlusive barrier on the skin's surface.
Benefits
- Improves skin hydration and reduces transepidermal water loss (TEWL)
- Lightweight, non-greasy feel compared to heavier oils
- Helps deliver other active ingredients deeper into the skin
- Smooth, silky texture in skincare formulations
Science: Research shows that emulsions containing 15% caprylic/capric triglyceride significantly increase skin hydration and reduce water loss in healthy subjects. The ingredient is also used as an effective carrier oil in nanoemulsions to enhance penetration of active compounds into skin.
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Stearic acid is a naturally occurring fatty acid commonly derived from plant or animal sources. In skincare products, it functions as an emollient and emulsifier, helping to soften skin, improve product texture, and stabilize formulations by allowing oil and water to mix together.
Benefits
- Softens and moisturizes skin by forming a protective barrier
- Improves product texture and stability
- Helps other active ingredients penetrate the skin more effectively
Potential concerns
- May cause mild irritation or sensitivity in people with very sensitive skin
- Can leave a slight waxy residue if used in high concentrations
Science: Research indicates stearic acid acts as a permeation enhancer, potentially improving how active ingredients cross the skin barrier. It is well-established in cosmetic formulation design and has a strong safety history in topical products.
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Tridecyl Trimellitate is a synthetic compound derived from trimellitic acid that functions as a skin conditioning agent in cosmetics. It helps soften and smooth the skin while improving the texture and feel of skincare formulations.
Benefits
- Softens and conditions skin
- Improves product texture and spreadability
- Enhances skin feel after application
Science: An expert safety panel (Cosmetic Ingredient Review) assessed trialkyl trimellitates including this ingredient and concluded they are safe for use in cosmetics at current concentrations when formulated to avoid irritation. No specific toxicological concerns were identified in the 2024 safety assessment.
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Tin Oxide is a mineral powder used in cosmetics primarily as a colorant and opacifying agent to create a smooth, matte finish in powders and foundations. It's an inert mineral that sits on top of the skin rather than being absorbed.
Benefits
- Provides opacity and coverage in powder formulations
- Creates a matte or satin finish
- Inert and unlikely to cause irritation in topical skincare use
Potential concerns
- Inhalation of powder particles should be avoided; inhaling tin oxide dust in industrial settings has been linked to lung concerns, though cosmetic powder use is a different exposure route
- No significant skin or eye irritation reported in normal cosmetic use
Science: The available research focuses on occupational inhalation hazards in industrial manufacturing rather than cosmetic use on skin. Tin oxide is poorly soluble and remains on the skin surface, making systemic absorption unlikely from topical application. Limited peer-reviewed data specifically addresses safety in finished skincare products.
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Synthetic fluorphlogopite is a mineral-derived ingredient made from magnesium silicate. It works as a bulking agent and thickener in cosmetic formulas, helping to create the right texture and consistency in products like foundations, powders, and creams.
Benefits
- Thickens and stabilizes product texture
- Improves spreadability and application
- Provides a smooth, even finish
Science: The Cosmetic Ingredient Review Expert Panel evaluated synthetic fluorphlogopite and concluded it is safe for use in cosmetics at typical concentrations. The ingredient has a well-established safety profile similar to other magnesium silicates used in skincare.
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Paraffin (also called mineral oil or liquid paraffin) is a lightweight, odorless oil derived from petroleum that sits on the skin's surface. It works as an occlusive ingredient, creating a barrier that traps moisture and prevents water loss from the skin.
Benefits
- Locks in skin hydration by reducing evaporative water loss
- Helps restore the skin barrier, especially useful for dry or compromised skin
- Well-tolerated by most skin types and unlikely to irritate sensitive skin
- Affordable and effective for managing xerosis (very dry skin) and conditions like eczema or psoriasis
Potential concerns
- May feel heavy or greasy on some skin types, particularly oily or acne-prone skin
- Can potentially clog pores in sensitive individuals, though this is rare
- Some consumers prefer to avoid petroleum-derived ingredients for environmental or ethical reasons
Science: Recent dermatological literature confirms paraffin is a gold-standard occlusive emollient recommended by dermatologists as first-line treatment for dry skin and barrier dysfunction. It works by preventing transepidermal water loss and is considered safe and effective for long-term skincare management, including in vulnerable populations.
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Aluminum Starch Octenylsuccinate is a modified starch derived from corn or potato starch, chemically altered to work as a powder-based anticaking and thickening agent. It prevents clumping in loose powders and helps control texture in cosmetic formulations.
Benefits
- Prevents caking and clumping in powder products
- Improves spreadability and application of loose powders
- Helps maintain consistent product texture over time
Science: The Cosmetic Ingredient Review Expert Panel assessed this ingredient in 2002 and reconfirmed its safety in 2023 based on toxicology studies showing no adverse effects on skin, eyes, or systemic health when used as intended. The ingredient is approved for use at concentrations up to 30% in cosmetics, provided heavy metal impurity limits are met.
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Analysis not yet available for this ingredient.
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Ozokerite is a natural mineral wax derived from petroleum sources, composed mainly of hydrocarbons and short-chain fatty acids. In skincare products, it functions as a thickening and texturizing agent that helps create a smooth, stable consistency while forming a protective barrier on the skin.
Benefits
- Improves product texture and spreadability
- Helps stabilize formulations
- Creates a protective, occlusive barrier on skin
Potential concerns
- May feel heavy or occlusive on sensitive or acne-prone skin
- Petroleum-derived, which some consumers prefer to avoid
Science: Research shows ozokerite wax reorganizes into strong needle-like crystals in skincare matrices, enhancing formula stability and texture. It demonstrates good plasticity and can effectively encapsulate active ingredients like essential oils to improve their stability and shelf-life.
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Carnauba wax is a natural wax derived from the leaves of the carnauba palm tree, commonly used in skincare to create a protective barrier on the skin. It helps products feel smooth, adds shine, and can improve water resistance without leaving a greasy residue.
Benefits
- Creates a protective barrier on skin
- Adds shine and smoothness to formulas
- Water-resistant properties
- Natural origin
Science: Carnauba wax is generally recognized as safe (GRAS) by regulatory bodies and has been used cosmetically for decades. Limited peer-reviewed data is available specifically for skincare applications, but its long safety history and non-toxic profile support its use in consumer products.
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Microcrystalline wax is a refined petroleum-derived wax made up of tiny crystals. In skincare products, it acts as a thickener and texture enhancer, helping to create a smooth, stable formula with a pleasant feel on the skin.
Benefits
- Creates a smooth, non-greasy texture in creams and balms
- Improves product stability and consistency
- Provides a protective barrier on the skin surface
- Enhances the sensory experience and spreadability of formulas
Potential concerns
- May feel occlusive or heavy on sensitive or acne-prone skin
- Petroleum-derived ingredient; not suitable for those seeking only plant-based products
- Can potentially clog pores if used in high concentrations
Science: Research shows microcrystalline wax creates soft, low-friction organogels and provides excellent texture and rheological stability in topical formulations compared to other wax types. It is considered safe for cosmetic use with a well-established history in skincare applications.
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Analysis not yet available for this ingredient.
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Analysis not yet available for this ingredient.
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Analysis not yet available for this ingredient.
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Analysis not yet available for this ingredient.
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