The Beauty & Personal Care Brand Builder Series

Product Review

KUSH Lash + Brow Serum | Manufacturing and Formulation Insights

This page provides an ingredient-level review of KUSH Lash + Brow Serum by MILK MAKEUP. Below you’ll find the publicly available ingredient list, a dynamic ingredient breakdown linked to the FormuNova ingredient database, and a formula structure overview intended for cosmetic founders, product developers, and brand teams researching competitor product architecture in modern lash & brow serums and related Beauty & Personal Care categories. This page is a formulation and manufacturing review and does not imply or state any association between FormuNova and MILK MAKEUP.

Full Ingredient List

Water (Aqua, Eau), Glycerin, Butylene Glycol, Polysorbate 20, Cannabis Sativa Seed Extract, Hydroxyethylcellulose, Phenoxyethanol, Caprylyl Glycol, Chlorphenesin, Papaver Somniferum Seed Extract, Aloe Barbadensis Leaf Juice, 1,2-Hexanediol, Hydrolyzed Quinoa, Sodium Hydroxide, Panthenol, Sodium Benzoate, Benzoic Acid, Potassium Sorbate, Biotinoyl Tripeptide-1, Oligopeptide-2, Nicotiana Benthamiana Hexapeptide-40 sh-Polypeptide-9, Nicotiana Benthamiana Hexapeptide-40 sh-Polypeptide-86, Citric Acid

Formulation Deep Dive

MILK MAKEUP’s KUSH Lash + Brow Serum is formulated as a high-performance, water-based conditioning treatment designed to support follicular health and hair density. The carrier system utilizes a blend of water, glycerin, and butylene glycol to ensure optimal delivery of actives to the lash line and brow area without a heavy or oily residue. The formulation strategy centers on a synergistic complex of Biotinoyl Tripeptide-1, Oligopeptide-2, and Nicotiana Benthamiana polypeptides, which work in tandem with Cannabis Sativa (Hemp) Seed Extract and Papaver Somniferum (Poppy) Seed Extract to nourish and strengthen hair fibers. Hydrolyzed Quinoa and Panthenol (Provitamin B5) provide additional structural support and moisture retention. The system is stabilized with hydroxyethylcellulose and utilizes a preservative blend of phenoxyethanol, chlorphenesin, sodium benzoate, and potassium sorbate to ensure long-term microbial stability.

Formula Structure Overview

This formula has a 86% match with ingredients from our research database. Among the matched ingredients, the main functional themes identified are categorized as conditioner, strengthener, hydrator, and moisturizer ingredients.

Reviewed Ingredient Coverage

86%

Matched Ingredients

Conditioner

Strengthener

Hydrator

Moisturizer

Ingredient Analysis

About our ratings

Water GREAT

Purified water serves as the primary, high-quality solvent in most cosmetics.

Solvent

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Glycerin GREAT

To attract and retain moisture in the skin and hair, enhancing hydration and improving barrier function.

Hydrator Moisturizer Emollient Texture Enhancer Conditioner Soother Barrier Support Anti-Aging Agent Solvent

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Butylene Glycol GOOD

To hydrate and condition skin and hair, enhance the absorption of active ingredients, and improve product texture and stability.

Hydrator Moisturizer Emollient Texture Enhancer Conditioner Solvent Preservative

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Polysorbate 20 GOOD

To stabilise oil-in-water or water-in-oil mixtures, reduce interfacial tension, solubilise lipophilic actives, and improve formulation texture and performance in skin and hair care systems.

Texture Enhancer Cleansing Agent Emulsifier Solvent

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Cannabis Sativa Seed Extract NOT RATED

Hydroxyethylcellulose GOOD

To enhance product viscosity, stability, and texture in skincare and haircare formulations.

Texture Enhancer Emulsifier

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Optiphen™ GOOD

To inhibit microbial growth in cosmetic formulations and help maintain product safety and integrity.

Texture Enhancer Preservative

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Chlorphenesin GOOD

A mild, stable cosmetic preservative used to broaden and reinforce a preservative system.

Preservative

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Papaver Somniferum Seed Extract NOT RATED

Aloe barbadensis (Aloe Vera) Juice GOOD

Deliver humectant hydration and soothing benefits as a stabilized aqueous phase that supports comfortable skin and manageable hair.

Hydrator Moisturizer Conditioner Antioxidant Soother Barrier Support Solvent

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1,2-Hexanediol GOOD

A multifunctional glycol used as a humectant and preservative booster with mild antimicrobial activity.

Hydrator Preservative

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Hydrolyzed Quinoa GOOD

A vegan hydrolyzed quinoa protein used to strengthen, smooth and condition the look of hair and skin.

Strengthener Conditioner

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Sodium Hydroxide GOOD

A strong alkali used at trace levels as a pH adjuster — to neutralize acids, set a formula’s target pH and activate gelling agents such as carbomer.

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Panthenol GREAT

To hydrate and condition skin and hair, enhance barrier function, and provide anti-inflammatory benefits.

Hydrator Moisturizer Emollient Conditioner Strengthener Soother Anti-Inflammatory Agent Barrier Support Emulsifier

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Sodium Benzoate GOOD

Functions as a preservative (antimicrobial), protecting water-containing formulations from yeast, mold, and bacterial spoilage. Its activity is pH-dependent and strongest in acidic systems (optimal below roughly pH 5), so it is used in low-pH products and frequently paired with potassium sorbate for broader, more robust preservation.

Preservative

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Potassium Sorbate GOOD

Functions as a preservative (antimicrobial), protecting water-containing formulations primarily against yeasts and molds, with weaker activity against bacteria. Its activity is pH-dependent and strongest in acidic systems (effective below roughly pH 6, optimal near pH 4.4), so it is used in low-pH products and is commonly paired with a second preservative such as sodium benzoate for broad-spectrum coverage.

Preservative

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Biotinoyl Tripeptide-1 GOOD

A biotin-conjugated tripeptide used to support the appearance of stronger, fuller, healthier hair.

Strengthener Conditioner

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Oligopeptide-2 NOT RATED

Nicotiana Benthamiana Hexapeptide-40 SH-Polypeptide-9 GOOD

A bioengineered plant-expressed peptide used to support the look of stronger, fuller hair.

Strengthener Conditioner

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Nicotiana Benthamiana Hexapeptide-40 SH-Polypeptide-86 GOOD

A bioengineered plant-expressed peptide used to support the look of stronger, fuller hair.

Strengthener Conditioner

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Citric Acid GOOD

Acts mainly as a pH adjuster and buffer and as a chelating agent that protects formula stability and preservation; at higher leave-on levels it also serves as a mild exfoliating AHA.

Chelating Agent Exfoliant

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The information provided in this review is based on internal research and publicly available sources. It is intended for general informational purposes only and does not constitute medical, legal, or regulatory advice. We do not guarantee the accuracy or completeness of this information. Users are encouraged to conduct their own research and consult appropriate professionals before making decisions based on this information.

The manufacturing partners for MILK MAKEUP are not publicly disclosed. Many brands work with multiple contract manufacturers across different regions depending on production volume, product type, and regulatory requirements.

Exact sales numbers for MILK MAKEUP are not publicly disclosed.

MILK MAKEUP has successfully captured market share by focusing on a successful balance of marketing and formulation.

Replicating that success requires more than just copying a formula, it requires identifying a marketing strategy that is unique to your brand’s audience, associated with a great product offering.

At FormuNova, we specialize in helping brands move past imitation to create high-performance product offerings with potential to outperform the current market leaders. Let’s discuss your launch strategy.

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This page provides an independent ingredient analysis of publicly available cosmetic products for research purposes. All trademarks, brand names, and product names are the property of their respective owners. FormuNova does not claim to be affiliated with, endorsed by, or sponsored by the brands mentioned on this page. Product images, when shown, are used solely for identification and commentary under fair use principles.