Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

BrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair Versus BrioGeo Color Me Brilliant™ Mushroom + Bamboo Color Protect Shampoo

BrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair Versus BrioGeo Color Me Brilliant™ Mushroom + Bamboo Color Protect Shampoo What's inside Key Ingredients Benefits Concerns Ingredients Side-by-side Water Sodium Cocoyl Isethionate Lauramidop

BrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair Versus BrioGeo Color Me Brilliant™ Mushroom + Bamboo Color Protect Shampoo

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Sodium Cocoyl Isethionate

Lauramidopropyl Betaine

Glycerin

Sodium C14-16 Olefin Sulfonate

Cocamidopropyl Hydroxysultaine

Coffea Arabica Seed Oil

Copper Tripeptide-34

Panax Ginseng Root Extract

Biotin

Coconut Acid

Leuconostoc/Radish Root Ferment Filtrate

Sodium Methyl Cocoyl Taurate

Sodium Isethionate

Citric Acid

Aloe Barbadensis Leaf Juice

Caffeine

Propanediol

Lindera Strychnifolia Root Extract

Tocopheryl Acetate

Ubiquinone

Glycine

Larix Europaea Wood Extract

Sodium Metabisulfite

Camellia Sinensis Leaf Extract

Zinc Chloride

Sodium Hydroxide

Parfum

Caprylhydroxamic Acid

Benzyl Alcohol

Water, Sodium Cocoyl Isethionate, Lauramidopropyl Betaine, Glycerin, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Hydroxysultaine, Coffea Arabica Seed Oil, Copper Tripeptide-34, Panax Ginseng Root Extract, Biotin, Coconut Acid, Leuconostoc/Radish Root Ferment Filtrate, Sodium Methyl Cocoyl Taurate, Sodium Isethionate, Citric Acid, Aloe Barbadensis Leaf Juice, Caffeine, Propanediol, Lindera Strychnifolia Root Extract, Tocopheryl Acetate, Ubiquinone, Glycine, Larix Europaea Wood Extract, Sodium Metabisulfite, Camellia Sinensis Leaf Extract, Zinc Chloride, Sodium Hydroxide, Parfum, Caprylhydroxamic Acid, Benzyl Alcohol

Sodium Lauroyl Methyl Isethionate

Trametes Versicolor Extract

Bambusa Arundinacea Leaf Extract

Hydrolyzed Corn Protein

Hydrolyzed Wheat Protein

Hydrolyzed Soy Protein

Lavandula Angustifolia Flower/Leaf/Stem Extract

Helianthus Annuus Seed Oil

Linum Usitatissimum Seed Oil

Prunus Armeniaca Kernel Oil

Ethylhexylglycerin

Sodium Gluconate

Punica Granatum Fruit Juice

Glycol Distearate

Sodium Lauryl Sulfoacetate

Pisum Sativum Extract

Rosmarinus Officinalis Leaf Extract

Cynara Scolymus Leaf Extract

Potassium Sorbate

Sodium Benzoate

Water, Sodium Lauroyl Methyl Isethionate, Lauramidopropyl Betaine, Glycerin, Cocamidopropyl Hydroxysultaine, Sodium C14-16 Olefin Sulfonate, Trametes Versicolor Extract, Bambusa Arundinacea Leaf Extract, Hydrolyzed Corn Protein, Hydrolyzed Wheat Protein, Hydrolyzed Soy Protein, Lavandula Angustifolia Flower/Leaf/Stem Extract, Helianthus Annuus Seed Oil, Linum Usitatissimum Seed Oil, Prunus Armeniaca Kernel Oil, Ethylhexylglycerin, Sodium Gluconate, Punica Granatum Fruit Juice, Glycol Distearate, Leuconostoc/Radish Root Ferment Filtrate, Aloe Barbadensis Leaf Juice, Sodium Lauryl Sulfoacetate, Tocopheryl Acetate, Pisum Sativum Extract, Rosmarinus Officinalis Leaf Extract, Cynara Scolymus Leaf Extract, Potassium Sorbate, Sodium Benzoate, Sodium Hydroxide, Parfum, Caprylhydroxamic Acid, Benzyl Alcohol

Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Aloe Barbadensis Leaf Juice is the filtered, stabilized liquid pressed from the inner gel of the aloe vera leaf.

In cosmetics, it shows up as either soothing active or a water-replacement base. It is roughly 98-99% water and the last 1-2% is an interesting mix of polysaccharides, amino acids, vitamins, minerals, and enzymes.

The polysaccharides do most of the work: they bind water at the skin surface for a light, non-greasy hydration boost. And one of the polysaccharides, glycomannan, is linked to fibroblast stimulation + collagen synthesis. This is also why aloe has such a long track record in wound and burn healing.

This ingredient is also calming with anti-inflammatory and mild antimicrobial activity, making it a great pick for sensitive, irritated, or post-sun skin.

Realistic expectations matter though; the solid evidence is mostly limited to hydration, soothing, and wound support. Deeper claims about anti-aging or sun protection are not well backed, and science reviews note it does not prevent radiation-induced skin injury.

Because it plays well with almost everything, it's commonly used as a base alongside other actives like niacinamide or vitamin C.

Typical usage concentrations range from 0.5% (where hydration benefits already show up) all the way to 90%+ (where it replaces water as the main base).

The safety for this ingredient is well-establish as well. Overall, this is a great supporting ingredient for those who want a boost in hydration.

Benzyl Alcohol is an aromatic alcohol with several roles: it's a preservative, solvent, and mild fragrance component with a floral scent.

This ingredient has been deemed safe for use in cosmetic formulations at concentrations up to 5%, and up to 10% in hair dyes. You'll typically see 0.5-2% in most rinse-off or leave-on products.

As a preservative, it works by disrupting the membrane of microbial proteins. This helps keep bacteria and fungi from growing in your products.

The sensitization picture is actually quite assuring as well:of nearly 71,000 patients patch tested with benzyl alcohol, only 0.21% showed a positive reaction with most of them being weakly positive.

This led researchers to conclude that benzyl alcohol cannot be regarded as a significant contact allergen.

It is worth noting this ingredient is classified as one of the EU's regulated fragrance allergens and restricted to 1% in finished products.

Labels must also declare it in concentrations above 0.001% in leave-on products and 0.01% in rinse-off products.

At concentrations around 5%, localized redness and itching can appear as a direct irritant response and not as a true allergic reaction.

Caprylhydroxamic Acid is a chelating agent that helps cosmetics stay fresh, stable, and consistent over time.

Chelating agents help prevent metal ions from binding to other ingredients. This helps prevent unwanted reactions and effects from using the product. It also helps prevent the growth of unwanted microbes in products that contain water.

Caprylhydroxamic Acid is often used with natural antimicrobial products as an alternative to preservatives.

Cocamidopropyl Hydroxysultaine is a synthetic cleansing agent, though it is derived from coconut oil.

It is used to enhance the texture of products by boosting lather and thickening the texture. As a cleanser, Cocamidopropyl Hydroxysultaine is mild.

Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.

Topically, glycerin does several things at once:

Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.

Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.

This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.

Just know very high concentrations (>40%) can feel tacky in low humidity.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

We don't have a description for Lauramidopropyl Betaine yet.

Leuconostoc/Radish Root Ferment Filtrate is a natural preservative. It comes from fermenting radish roots with a bacteria called leuconostoc. The trade name for this ingredient is Leucidal.

Leuconostoc comes from lactic acid.

This ingredient has antimicrobial properties and helps prevent the growth of bacteria in a product.

Leuconostoc is used to make the traditional Korean side-dish, kimchi. It is also used to make sourdough bread (both incredibly yummy foods).

Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.

Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture.

For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.

The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.

For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards.

One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.

Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.

Parfum can also be used to mask or cover an unpleasant scent.

The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.

Sodium C14-16 Olefin Sulfonate is a surfactant that helps water and oil mix so that dirt, sweat, sebum, and sunscreen can rinse away easily. It's not technically a sulfate, but behaves similarly in formulas.

What it does:

Sodium C14-16 Olefin Sulfonate is a strong cleansing surfactant and is much stronger than many mild cleansers. Because it works deeply, it can disrupt the skin's barrier. This can lead to dryness or irritation for those with sensitive skin.

Compared to gentler surfactants, it's effective but more likely to dry or irritate if not balanced with soothing ingredients.

CIR considers sodium α-olefin sulfonates (including C14-16) to be safe for use in rinse-off products when properly formulated. It is poorly absorbed through normal skin but absorption increases if the skin barrier is already damaged.

Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.

In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.

Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.

"Alkaline" refers to a high pH level. A low pH level would be considered acidic.

Tocopheryl Acetate is a stable, shelf-friendly form of vitamin E.

Formulators love it because plain vitamin E oxidizes quickly once it hits air. This acetate version stays stable and resists going off, helping to extend a product's shelf life.

It's actually inactive on its own and works like a slow-release "storage" form; the enzymes in your skin called esterases gradually convert it into active vitamin E over time.

One in vivo study showed 5% of the acetate in the living layer of the epidermis converted to vitamin E after 5 days of application. This study also found the skin gained protection against UV damage even though the conversion was slow and small.

Once converted, vitamin E acts as a skin's main fat-soluble antioxidant that fights free radicals to protect skin from damage.

Topical vitamin E generally boosts the skin's photoprotection, and it reduced UV-damage in animal models.

This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.

Overall, it has a pretty solid safety profile and has been found to be non-irritating and non-comedogenic. Allergic reactions may happen but stay rare due to how widely the ingredient gets used.

The concentration will vary depending on the formula; industry data shows 0.1% in baby lotions, 3% in lipsticks, and 5% in foot powders. You can also find this ingredient at 100% in a pure vitamin E oil.

Most leave-on skincare keeps it at the lower end, often between 0.5-1%.

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!

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