unove Deep Damage Repair Shampoo Versus Elizavecca Milky Piggy CER-100 Collagen Ceramide Coating Protein Treatment
unove Deep Damage Repair Shampoo Versus Elizavecca Milky Piggy CER-100 Collagen Ceramide Coating Protein Treatment What's inside Key Ingredients Benefits Concerns Ingredients Side-by-side Water Sodium C14-16 Olefin Sulfonate Cocamidopropyl Betaine Cocamide Mea
unove Deep Damage Repair Shampoo Versus Elizavecca Milky Piggy CER-100 Collagen Ceramide Coating Protein Treatment
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Sodium C14-16 Olefin Sulfonate
Cocamidopropyl Betaine
Cocamide Mea
Parfum
Coco-Glucoside
Decyl Glucoside
Dipropylene Glycol
Sodium Chloride
Sodium Benzoate
PPG-3 Caprylyl Ether
Polyquaternium-10
Caprylyl Glycol
Citric Acid
Hydroxypropyl Guar Hydroxypropyltrimonium Chloride
Disodium EDTA
Hydrolyzed Collagen
Butylene Glycol
Hydrolyzed Silk
Aspergillus Ferment
Arginine
Glycerin
1,2-Hexanediol
Panthenol
Linum Usitatissimum Seed Extract
Salvia Hispanica Seed Extract
Polyglyceryl-10 Laurate
Hydrolyzed Keratin
Avena Sativa Protein Extract
Hydrolyzed Corn Protein
Hydrolyzed Soy Protein
Lavandula Angustifolia Extract
Rosmarinus Officinalis Leaf Extract
Chamomilla Recutita Flower Extract
Monarda Didyma Leaf Extract
Mentha Piperita Leaf Extract
Freesia Refracta Extract
Benzyl Alcohol
Xylitol
Caprylic Acid
Silk Amino Acids
Ethyl Hexanediol
Camellia Japonica Seed Oil
Argania Spinosa Kernel Oil
Ethylhexylglycerin
Olea Europaea Fruit Oil
Macadamia Integrifolia Seed Oil
Helianthus Annuus Seed Oil
Hexyl Cinnamal
Limonene
Citronellol
Geraniol
Water, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Cocamide Mea, Parfum, Coco-Glucoside, Decyl Glucoside, Dipropylene Glycol, Sodium Chloride, Sodium Benzoate, PPG-3 Caprylyl Ether, Polyquaternium-10, Caprylyl Glycol, Citric Acid, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Disodium EDTA, Hydrolyzed Collagen, Butylene Glycol, Hydrolyzed Silk, Aspergillus Ferment, Arginine, Glycerin, 1,2-Hexanediol, Panthenol, Linum Usitatissimum Seed Extract, Salvia Hispanica Seed Extract, Polyglyceryl-10 Laurate, Hydrolyzed Keratin, Avena Sativa Protein Extract, Hydrolyzed Corn Protein, Hydrolyzed Soy Protein, Lavandula Angustifolia Extract, Rosmarinus Officinalis Leaf Extract, Chamomilla Recutita Flower Extract, Monarda Didyma Leaf Extract, Mentha Piperita Leaf Extract, Freesia Refracta Extract, Benzyl Alcohol, Xylitol, Caprylic Acid, Silk Amino Acids, Ethyl Hexanediol, Camellia Japonica Seed Oil, Argania Spinosa Kernel Oil, Ethylhexylglycerin, Olea Europaea Fruit Oil, Macadamia Integrifolia Seed Oil, Helianthus Annuus Seed Oil, Hexyl Cinnamal, Limonene, Citronellol, Geraniol
Cetearyl Alcohol
Behentrimonium Chloride
Amodimethicone
Cyclopentasiloxane
Isopropyl Alcohol
Cetrimonium Chloride
Dimethicone
Trideceth-12
Tocopheryl Acetate
Caramel
Cornus Officinalis Fruit Extract
Rehmannia Glutinosa Root Extract
Dioscorea Japonica Root Extract
Alisma Orientale Tuber Extract
Paeonia Suffruticosa Root Extract
Poria Cocos Sclerotium Extract
Ceramide NP
Alcohol
Gelatin
Avena Sativa Kernel Extract
Hydrolyzed Wheat Protein
Phenoxyethanol
Daucus Carota Sativa Root Extract
Brassica Oleracea Italica Extract
Apium Graveolens Extract
Brassica Oleracea Capitata Leaf Extract
Oryza Sativa Extract
Brassica Rapa Leaf Extract
Solanum Lycopersicum Fruit/Leaf/Stem Extract
Water, Cetearyl Alcohol, Behentrimonium Chloride, Glycerin, Amodimethicone, Cyclopentasiloxane, Citric Acid, Isopropyl Alcohol, Cetrimonium Chloride, Sodium Benzoate, Dimethicone, Trideceth-12, Panthenol, Parfum, Tocopheryl Acetate, Caramel, Butylene Glycol, Cornus Officinalis Fruit Extract, Rehmannia Glutinosa Root Extract, Dioscorea Japonica Root Extract, Alisma Orientale Tuber Extract, Paeonia Suffruticosa Root Extract, Poria Cocos Sclerotium Extract, Ceramide NP, Alcohol, Hydrolyzed Silk, Hydrolyzed Collagen, Gelatin, Hydrolyzed Keratin, Avena Sativa Kernel Extract, 1,2-Hexanediol, Hydrolyzed Wheat Protein, Hydrolyzed Corn Protein, Hydrolyzed Soy Protein, Phenoxyethanol, Daucus Carota Sativa Root Extract, Brassica Oleracea Italica Extract, Apium Graveolens Extract, Brassica Oleracea Capitata Leaf Extract, Oryza Sativa Extract, Brassica Rapa Leaf Extract, Ethylhexylglycerin, Solanum Lycopersicum Fruit/Leaf/Stem Extract
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Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
It is a:
Humectant, drawing moisture into the skin
Emollient, helping to soften skin
Solvent, dispersing and stabilizing formulas
Preservative booster, enhancing the antimicrobial activity of other preservatives
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.
Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.
However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.
Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.
In skincare formulas, citric acid can:
While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.
Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.
Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger.
However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure.
Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.
Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
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.
Hydrolyzed Collagen is Collagen (usually sourced from fish, bovine, or porcine byproducts) that's been broken down into smaller peptides. This makes it water-soluble and easy to blend into formulations.
In a formula, it works mainly as a skin-conditioning and moisturizing agent.
The small peptides and amino acids (including Natural Moisturizing Factor components like Hydroxyproline, Serine, and Aspartic Acid) help the surface of the skin hold onto water, feel softer, and look temporarily plumper.
This ingredient also has mild film-forming and antioxidant properties with research showing the antioxidant effect is stronger the lower the molecular weight of the peptides.
It's worth being realistic here:
Topically applied Hydrolyzed Collagen conditions the upper layers of skin rather than rebuilding the structural collagen deep in your dermis (the wrinkle-and-firmness benefits people associate with Collagen mostly come from oral supplements in studies, not topicals).
However, recent lab and skin-model work on Hydrolyzed Fish Collagen has shown promising effects on cell viability and wound healing when used as an active.
Typical concentrations range from 0.2-2%, but the percentage can go much higher in rinse-off or hair products (sometimes even above 50%).
Clinical studies on this ingredient showed no irritation, sensitization, or phototoxicity.
If you are looking for vegan collagen, it usually goes by a different INCI name like hydrolyzed soy protein. Vegan collagen is derived from yeast, bacteria, or plant sources.
The results are varied.
A study from 2021 found hydrolyzed collagen increased elasticity and improved wrinkles in 1,125 participants between age 20 and 70. Another study found increased skin thickness in participants between the ages of 45 to 59.
However, It is difficult to prove that oral collagen will end up working on your skin. Many of the studies using hydrolyzed collagen also add several vitamins and nutrients into the test mixture as well.
Further studies are needed at this time.
We don't have a description for Hydrolyzed Corn Protein yet.
Hydrolyzed Keratin is derived from keratin. Keratin is a large protein that is naturally found in our hair and skin.
Studies show keratin is able to seal broken hair cuticles, helping to prevent split ends and breakage.
As a humectant, hydrolyzed keratin helps draw moisture from the air to your hair and skin. This helps keep your skin and hair hydrated.
You can find hydrolyzed silk in both haircare and skincare products. According to a manufacturer, it can help improve skin and hair hydration.
This ingredient is created by adding acid or enzymes to 'hydrolyze' silk protein.
Due to the origins of this ingredient, it is not vegan. Silk is an animal product from silkworms.
Depending on the source, this ingredient can be considered cruelty-free. It is created from left-over cocoons of silkworms. We recommend reaching out to the brand if you have questions about where their hydrolyzed silk comes from.
Hydrolyzed Soy Protein is a water-soluble blend of peptides and amino acids made by breaking down the protein from soybeans into smaller proteins.
It's the most widely used hydrolyzed vegetable protein in cosmetics and it acts mainly as a skin and hair conditioning agent.
The smaller fragments are water-loving so it forms a thin, moisture-retentive film on skin that helps reduce water loss and leaves things feeling softer and smoother.
You'll often see it credited with "firming" or "anti-aging" benefits as well; this claim traces back to lab research like Tokudome et al. (2012). This study added low-molecular-weight soybean peptides to cultured human skin fibroblasts and saw increased type I collagen gene expression + collagen content.
The caveat is that this is in-vitro and oral-peptide research so the only solid, well-established role for the topical ingredient is skin conditioning.
Typical use concentrations go up to 3.5% in mascara but this ingredient is typically used at low levels well under 1%.
It has a reassuring safety profile as well; it's not a skin irritant in testing up to 20% and has limited skin penetration due to its large size and water-loving nature.
Anyone with a known soy allergy should definitely patch test or skip this ingredient. There's also a single case of a soy-containing product aggravating rosacea via protein contact dermatitis, but this is very rare.
Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.
There are two forms of panthenol: D and L.
D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.
Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):
Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.
This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
This ingredient is also referred to as pro-vitamin B5.
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 Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
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!