Thicker Fuller Hair Thickening Serum - 5 fl oz

Common questions

Is Thicker Fuller Hair Thickening Serum - 5 fl oz healthy?

Thicker Fuller Hair Thickening Serum - 5 fl oz scores 75/100 on Scout's independent analysis of ingredients, additives, and lab results — a fair-to-good score — solid, with tradeoffs. This serum contains several beneficial ingredients such as aloe vera, glycerin, and various natural oils that provide hydration and nourishment to the hair.

Which ingredients drive Thicker Fuller Hair Thickening Serum - 5 fl oz's score?

In Scout's ingredient-by-ingredient analysis, Aloe Barbadensis Leaf Juice, Glycerin, Coffea Arabica (Coffee) Seed Oil count in its favor; Fragrance, Phenoxyethanol, Benzyl Alcohol are flagged as ingredients of concern. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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Thicker Fuller Hair Thickening Serum - 5 fl oz

Thicker Fuller Hair
75 Good

Analysis updated August 2026 · How Scout scores

$9.98 · 4 fl oz · $2.50 / ounce
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At a glance

Beneficial ingredients 8
Harmful ingredients 5
Owned by Newhall Laboratories
Category Serum
Summary

This serum contains several beneficial ingredients such as aloe vera, glycerin, and various natural oils that provide hydration and nourishment to the hair. However, the presence of synthetic fragrance, which can cause skin irritation and allergic reactions, detracts from its overall safety profile. Additionally, the inclusion of PEG compounds and other synthetic additives indicates a moderate level of processing, which impacts the overall rating.

Key ingredients 31

Aloe Barbadensis Leaf Juice
Very Good

Aloe vera is known for its soothing and moisturizing properties. It can help calm irritated skin and provide hydration. It is a beneficial ingredient in skincare and haircare products.

Risks

Rare allergic reactions may occur in sensitive individuals.

Benefits

Provides soothing and hydrating effects, beneficial for skin and hair health.

See more about Aloe Barbadensis Leaf Juice →
Glycerin
Good

Glycerin is a well-known humectant that attracts moisture to the skin. It helps maintain skin hydration and improve barrier function. It is widely used in skincare for its moisturizing properties.

Risks

Generally safe, but overuse can lead to a sticky feel.

Benefits

Excellent for maintaining skin hydration and improving texture.

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Coffea Arabica (Coffee) Seed Oil
Good

Coffee seed oil is rich in antioxidants and can help protect the skin from environmental damage. It also has moisturizing properties. It is beneficial for skin and hair health.

Risks

Potential for allergic reactions in sensitive individuals.

Benefits

Provides antioxidant protection and moisturization.

Schinziophyton Rautanenii (Mongongo) Kernel Oil
Good

Mongongo oil is rich in fatty acids and vitamin E, providing nourishment and protection to the skin and hair. It helps improve moisture retention and elasticity. It is a beneficial natural oil in cosmetic formulations.

Risks

Rare allergic reactions may occur.

Benefits

Nourishes and protects skin and hair, enhancing moisture retention.

Pisum Sativum (Pea) Sprout Extract
Good

Pea sprout extract is known for its ability to stimulate hair growth and improve hair density. It contains phytonutrients that support hair health. It is a beneficial ingredient in haircare products.

Benefits

Promotes hair growth and improves hair density.

Rosmarinus Officinalis (Rosemary) Leaf Extract
Good

Rosemary extract is known for its antioxidant and antimicrobial properties. It helps protect the skin and hair from environmental damage. It is a beneficial botanical ingredient in cosmetics.

Risks

May cause irritation in sensitive individuals.

Benefits

Provides antioxidant protection and antimicrobial benefits.

See more about Rosmarinus Officinalis (Rosemary) Leaf Extract →
Hydrolyzed Quinoa
Good

Hydrolyzed quinoa is rich in amino acids and helps strengthen and protect hair. It improves hair elasticity and moisture retention. It is a beneficial ingredient in haircare products.

Benefits

Strengthens and protects hair, enhancing elasticity.

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Caprylic/Capric Triglyceride
Good

Caprylic/Capric Triglyceride is an emollient derived from coconut oil and glycerin. It helps moisturize and condition the skin and hair. It is a beneficial ingredient in cosmetic formulations.

Benefits

Moisturizes and conditions skin and hair.

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Water (Aqua)
Neutral

Water is a common solvent used in cosmetic formulations. It helps dissolve other ingredients and provides a base for the product. It does not have any direct benefits or risks.

Benefits

Provides a medium for other ingredients to be delivered effectively.

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PEG-40 Hydrogenated Castor Oil
Neutral

PEG-40 Hydrogenated Castor Oil is used as an emulsifier and surfactant. It helps blend oil and water-based ingredients. It is generally considered safe in cosmetics.

Risks

May cause irritation in some individuals with sensitive skin.

Benefits

Helps stabilize formulations and improve texture.

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Propanediol
Neutral

Propanediol is a glycol used as a solvent and humectant. It helps retain moisture in the skin and improve product texture. It is generally well-tolerated in cosmetic formulations.

Risks

May cause mild irritation in sensitive skin types.

Benefits

Enhances moisture retention and improves product feel.

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Soy Amino Acids
Neutral

Soy amino acids are used to strengthen and condition hair. They help improve hair texture and manageability. They are generally safe and beneficial in haircare formulations.

Risks

Potential for allergic reactions in soy-sensitive individuals.

Benefits

Strengthens and conditions hair, improving texture.

Wheat Amino Acids
Neutral

Wheat amino acids help improve hair strength and elasticity. They are used to condition and repair damaged hair. They are generally considered safe in haircare products.

Risks

May cause reactions in individuals with wheat allergies.

Benefits

Enhances hair strength and elasticity, aiding in repair.

Arginine Hcl
Neutral

Arginine is an amino acid that can help improve blood circulation to the scalp. It supports hair health and growth. It is a common ingredient in haircare products.

Benefits

Supports scalp health and hair growth.

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Serine
Neutral

Serine is an amino acid that helps maintain skin hydration and elasticity. It is used in skincare and haircare products for its conditioning properties. It is generally safe and beneficial.

Benefits

Maintains hydration and elasticity in skin and hair.

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Threonine
Neutral

Threonine is an amino acid that supports collagen production and skin health. It is used in cosmetic formulations for its conditioning benefits. It is generally considered safe.

Benefits

Supports collagen production and skin health.

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Copper Gluconate
Neutral

Copper gluconate is used for its potential antioxidant properties and role in collagen synthesis. It supports skin health and elasticity. It is generally safe in cosmetic formulations.

Risks

Excessive use may lead to skin irritation.

Benefits

Provides antioxidant support and aids in collagen synthesis.

Zinc Gluconate
Neutral

Zinc gluconate is used for its anti-inflammatory and skin-soothing properties. It helps regulate oil production and supports skin health. It is generally safe in cosmetic formulations.

Risks

Excessive use may cause dryness or irritation.

Benefits

Regulates oil production and soothes skin.

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Magnesium Aspartate
Neutral

Magnesium aspartate is used for its potential skin conditioning properties. It helps maintain skin health and hydration. It is generally safe in cosmetic formulations.

Benefits

Supports skin health and hydration.

Polysorbate 20
Neutral

Polysorbate 20 is an emulsifier that helps blend oil and water-based ingredients. It is commonly used in cosmetics to stabilize formulations. It is generally considered safe.

Risks

May cause mild irritation in sensitive skin.

Benefits

Stabilizes formulations and improves texture.

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Hydroxyethylcellulose
Neutral

Hydroxyethylcellulose is a thickening agent used to improve product texture. It helps stabilize formulations and is generally considered safe. It does not have direct benefits or risks.

Benefits

Improves product texture and stability.

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VP/VA Copolymer
Neutral

VP/VA Copolymer is used as a film-forming agent in haircare products. It helps provide hold and style retention. It is generally considered safe in cosmetic formulations.

Risks

May cause build-up on hair with excessive use.

Benefits

Provides hold and style retention in hair products.

PVP
Neutral

PVP is a film-forming agent used to provide hold and style retention in haircare products. It is commonly used in styling products for its fixative properties. It is generally considered safe.

Risks

May cause build-up on hair with excessive use.

Benefits

Provides hold and style retention in hair products.

Polyquaternium-11
Neutral

Polyquaternium-11 is a conditioning agent that helps improve hair texture and manageability. It provides a smooth feel and reduces static. It is generally considered safe in haircare products.

Risks

May cause build-up on hair with excessive use.

Benefits

Improves hair texture and reduces static.

Polyquaternium-7
Neutral

Polyquaternium-7 is a conditioning agent used to improve hair texture and manageability. It provides a smooth feel and reduces static. It is generally considered safe in haircare products.

Risks

May cause build-up on hair with excessive use.

Benefits

Improves hair texture and reduces static.

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Isomalt
Neutral

Isomalt is a sugar alcohol used as a humectant and texturizer in cosmetics. It helps retain moisture and improve product feel. It is generally considered safe.

Benefits

Retains moisture and improves product texture.

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Phenoxyethanol
Bad

Processed additive flagged under Scout's ingredient doctrine.

Risks

May cause irritation in sensitive skin types.

Benefits

Prevents microbial growth, extending product shelf life.

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Benzyl Alcohol
Bad

Processed additive flagged under Scout's ingredient doctrine.

Risks

May cause irritation in sensitive skin types.

Benefits

Prevents microbial growth and improves texture.

See more about Benzyl Alcohol →
Potassium Sorbate
Bad

Synthetic preservative — flagged in daily-use products.

Risks

May cause irritation in sensitive skin types.

Benefits

Inhibits mold and yeast growth, extending product shelf life.

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Sodium Benzoate
Bad

Synthetic preservative that can form benzene in the presence of vitamin C.

Risks

May cause irritation in sensitive skin types.

Benefits

Prevents microbial growth, extending product shelf life.

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Fragrance
Very Bad

Fragrance is often added to cosmetics for scent but can cause skin irritation and allergic reactions. It is a common sensitizer in personal care products. It is generally considered a negative ingredient due to potential irritation.

Risks

Can cause skin irritation and allergic reactions.

Benefits

Adds pleasant scent to products.

See more about Fragrance →

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