Liquid Lash Extension Mascara Brynn (rich black)-by Thrive Causemetics
Analysis updated August 2026 · How Scout scores
At a glance
Summary
This mascara contains several beneficial ingredients such as shea butter, castor oil, and sodium hyaluronate, which provide moisturizing and nourishing properties. However, the presence of denatured alcohol, which can be drying and irritating, especially around the eyes, negatively impacts the overall safety profile. The product also includes some synthetic components, which slightly lowers its score due to the level of processing involved.
Key ingredients 26
Butyrospermum Parkii (Shea) ButterVery Good
Shea butter is a natural fat extracted from the nuts of the shea tree. It is known for its moisturizing and nourishing properties. It is highly beneficial for skin and hair care.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
Provides deep moisture and nourishment to lashes, preventing dryness.
Ricinus Communis (Castor) Seed OilVery Good
Castor oil is a natural oil known for its conditioning and strengthening properties. It is often used to promote healthy hair and lash growth. It is safe and beneficial for use in cosmetics.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
Conditions and strengthens lashes, promoting healthy growth.
PanthenolVery Good
Panthenol is a form of Vitamin B5 known for its moisturizing and soothing properties. It helps in improving the texture and health of lashes. It is highly beneficial for use in cosmetics.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
Moisturizes and strengthens lashes, promoting healthy growth.
GlycerinGood
Glycerin is a humectant that attracts moisture to the skin, helping to keep it hydrated. It is widely used in cosmetics for its moisturizing properties. It is safe and beneficial for most skin types.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
Helps to keep lashes moisturized and prevents them from becoming brittle.
Cera Carnauba/Copernicia Cerifera (Carnauba) Wax/Cire De CarnaubaGood
Carnauba wax is a natural wax that provides structure and stability to the mascara. It helps in thickening and lengthening lashes. It is safe and beneficial for use in cosmetics.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
Adds volume and length to lashes while providing a natural shine.
Sodium HyaluronateGood
Sodium hyaluronate is a form of hyaluronic acid known for its excellent moisturizing properties. It helps in retaining moisture and improving lash health. It is highly beneficial for use in cosmetics.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
Provides deep hydration and improves the health of lashes.
Iron Oxides (CI 77499)Good
Beneficial ingredient — whole-food or functional value in this product class.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
Provides rich color and pigmentation to the mascara.
Aqua/Water/EauNeutral
Water is a common solvent used in cosmetics to dissolve other ingredients. It helps in the application and consistency of the product. It is generally safe and non-irritating.
Risks
There are no significant risks associated with water in cosmetics.
Benefits
Water helps in the even distribution of other ingredients and provides a base for the formulation.
Acrylates/Ethylhexyl Acrylate CopolymerNeutral
This copolymer is used as a film-forming agent to help the mascara adhere to lashes. It provides water resistance and durability. It is generally considered safe for use in cosmetics.
Risks
May cause irritation in sensitive individuals if used near the eyes.
Benefits
Enhances the longevity and water resistance of the mascara.
Glyceryl Stearate SENeutral
Glyceryl Stearate SE is an emulsifier that helps blend water and oil components. It provides a smooth texture to the product. It is generally safe and non-irritating.
Risks
Rarely, it may cause mild irritation in very sensitive individuals.
Benefits
Improves the texture and consistency of the mascara.
VP/Eicosene CopolymerNeutral
This copolymer is used as a film-forming agent to enhance the durability of the mascara. It helps in maintaining the product's integrity throughout the day. It is considered safe for use in cosmetics.
Risks
May cause irritation if it comes into direct contact with the eyes.
Benefits
Provides long-lasting wear and water resistance.
Stearic AcidNeutral
Stearic acid is a fatty acid used as an emulsifier and thickener in cosmetics. It helps in stabilizing the formulation. It is generally safe and non-irritating.
Risks
Rarely, it may cause mild irritation in sensitive individuals.
Benefits
Contributes to the creamy texture and stability of the mascara.
TromethamineNeutral
Tromethamine is used as a pH adjuster in cosmetics to maintain product stability. It helps in ensuring the product remains effective over time. It is generally considered safe for use.
Risks
May cause irritation if used in high concentrations.
Benefits
Helps maintain the stability and effectiveness of the mascara.
Palmitic AcidNeutral
Palmitic acid is a fatty acid used as an emulsifier and thickener in cosmetics. It helps in stabilizing the formulation. It is generally safe and non-irritating.
Risks
Rarely, it may cause mild irritation in sensitive individuals.
Benefits
Contributes to the creamy texture and stability of the mascara.
Laureth-21Neutral
Laureth-21 is an emulsifier and surfactant used to improve the texture and spreadability of cosmetics. It helps in blending ingredients smoothly. It is generally considered safe for use.
Risks
May cause irritation if used in high concentrations.
Benefits
Improves the texture and application of the mascara.
PVPNeutral
PVP is a film-forming agent that helps in providing hold and structure to the mascara. It enhances the product's durability and wear. It is generally considered safe for use in cosmetics.
Risks
May cause irritation if it comes into direct contact with the eyes.
Benefits
Provides long-lasting hold and structure to the mascara.
Xanthan GumNeutral
Xanthan gum is a natural thickening agent used to stabilize and thicken cosmetic formulations. It helps in maintaining the product's consistency. It is generally safe and non-irritating.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
Contributes to the stability and consistency of the mascara.
Sodium DehydroacetateNeutral
Sodium dehydroacetate is a preservative used to prevent microbial growth in cosmetics. It helps in extending the shelf life of the product. It is generally considered safe for use.
Risks
May cause irritation in sensitive individuals if used in high concentrations.
Benefits
Prevents microbial contamination, ensuring product safety.
MethylglucamineNeutral
Methylglucamine is used as a stabilizer and emulsifier in cosmetics. It helps in maintaining the product's consistency and stability. It is generally considered safe for use.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
Contributes to the stability and consistency of the mascara.
EthylhexylglycerinNeutral
Ethylhexylglycerin is used as a preservative and skin conditioning agent in cosmetics. It helps in enhancing the efficacy of other preservatives. It is generally considered safe for use.
Risks
May cause irritation in sensitive individuals if used in high concentrations.
Benefits
Enhances the preservation and conditioning properties of the mascara.
Trisodium Ethylenediamine DisuccinateNeutral
This ingredient is used as a chelating agent to improve the stability and efficacy of the product. It helps in binding metal ions that can destabilize formulations. It is generally considered safe for use.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
Improves the stability and efficacy of the mascara.
Neofinetia Falcata Callus Culture ExtractNeutral
This botanical extract is used for its potential antioxidant and soothing properties. It may help in protecting and conditioning lashes. It is generally considered safe for use.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
May provide antioxidant protection and conditioning to lashes.
DimethiconeBad
Occlusive silicone film-former — flagged under clean-beauty doctrine.
Risks
May cause build-up on the skin with prolonged use.
Benefits
Improves the texture and spreadability of the mascara.
PhenoxyethanolBad
Processed additive flagged under Scout's ingredient doctrine.
Risks
May cause irritation in sensitive individuals if used in high concentrations.
Benefits
Prevents microbial contamination, ensuring product safety.
LecithinBad
Processed additive flagged under Scout's ingredient doctrine.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
Improves the texture and conditioning properties of the mascara.
Alcohol Denat.Very Bad
Denatured alcohol is used as a solvent and can help in quick drying of the product. However, it can be drying and irritating to the skin, especially around sensitive areas like the eyes.
Risks
Can cause dryness and irritation, particularly for sensitive skin types.
Benefits
Helps in quick drying and setting of the mascara.
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