Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

Haruharu Wonder Centella Phyto & 5 Peptide Concentrate Cream Versus Stratia Interface Cream

Haruharu Wonder Centella Phyto & 5 Peptide Concentrate Cream Versus Stratia Interface Cream This anti-aging moisturizer is formulated around Centella Asiatica Extract and Madecassoside to soften the look of wrinkles and calm redness. This anti-aging moisturize

Haruharu Wonder Centella Phyto & 5 Peptide Concentrate Cream Versus Stratia Interface Cream

This anti-aging moisturizer is formulated around Centella Asiatica Extract and Madecassoside to soften the look of wrinkles and calm redness.

This anti-aging moisturizer is formulated around Squalane and Panthenol to soften the look of wrinkles and strengthen the skin barrier.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Butylene Glycol

Caprylic/Capric Triglyceride

Helianthus Annuus Seed Oil

Polyglyceryl-3 Distearate

1,2-Hexanediol

Cetyl Alcohol

Cetyl Palmitate

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Sorbitan Palmitate

Sorbitan Olivate

Glyceryl Stearate

Stearyl Alcohol

Xanthan Gum

Glyceryl Stearate Citrate

Myristyl Alcohol

Squalane

Caffeine

Hydrolyzed Soy Protein

Hydrogenated Lecithin

Pentylene Glycol

Ethylhexylglycerin

Adenosine

Butyrospermum Parkii Butter

Phytosterols

Lauryl Alcohol

Centella Asiatica Extract

Hydrolyzed Pea Protein

Madecassoside

Asiaticoside

Caprylyl Glycol

Xylitylglucoside

Anhydroxylitol

Copper Tripeptide-1

Xylitol

Acetyl Hexapeptide-8

Asiatic Acid

Madecassic Acid

Glucose

Ceramide NP

Hippophae Rhamnoides Fruit Extract

Oligopeptide-32

Oligopeptide-29

Palmitoyl Pentapeptide-4

Water, Glycerin, Butylene Glycol, Caprylic/Capric Triglyceride, Helianthus Annuus Seed Oil, Polyglyceryl-3 Distearate, 1,2-Hexanediol, Cetyl Alcohol, Cetyl Palmitate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Sorbitan Palmitate, Sorbitan Olivate, Glyceryl Stearate, Stearyl Alcohol, Xanthan Gum, Glyceryl Stearate Citrate, Myristyl Alcohol, Squalane, Caffeine, Hydrolyzed Soy Protein, Hydrogenated Lecithin, Pentylene Glycol, Ethylhexylglycerin, Adenosine, Butyrospermum Parkii Butter, Phytosterols, Lauryl Alcohol, Centella Asiatica Extract, Hydrolyzed Pea Protein, Madecassoside, Asiaticoside, Caprylyl Glycol, Xylitylglucoside, Anhydroxylitol, Copper Tripeptide-1, Xylitol, Acetyl Hexapeptide-8, Asiatic Acid, Madecassic Acid, Glucose, Ceramide NP, Hippophae Rhamnoides Fruit Extract, Oligopeptide-32, Oligopeptide-29, Palmitoyl Pentapeptide-4

Hydrogenated Polydecene

Panthenol

Ethoxydiglycol

Dimethicone

Rosa Canina Fruit Oil

Cetearyl Alcohol

Acetyl Glutamine

Sh-Oligopeptide-1

Sh-Oligopeptide-2

Sh-Polypeptide-1

Sh-Polypeptide-9

Sh-Polypeptide-11

Copper Palmitoyl Heptapeptide-14

Heptapeptide-15 Palmitate

Glycyrrhiza Glabra Root Extract

Allantoin

Sodium Hyaluronate

Glycolic Acid

Lactic Acid/Glycolic Acid Copolymer

Disodium EDTA

Polyacrylamide

Potassium Sorbate

Sodium Benzoate

C13-14 Isoparaffin

Polyvinyl Alcohol

Methylparaben

Propylparaben

Laureth-7

Diazolidinyl Urea

Water, Glycerin, Squalane, Hydrogenated Polydecene, Panthenol, Ethoxydiglycol, Dimethicone, Rosa Canina Fruit Oil, Cetearyl Alcohol, Acetyl Glutamine, Sh-Oligopeptide-1, Sh-Oligopeptide-2, Sh-Polypeptide-1, Sh-Polypeptide-9, Sh-Polypeptide-11, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Glycyrrhiza Glabra Root Extract, Allantoin, Caprylyl Glycol, Butylene Glycol, Sodium Hyaluronate, Glycolic Acid, Lactic Acid/Glycolic Acid Copolymer, Disodium EDTA, Polyacrylamide, Potassium Sorbate, Sodium Benzoate, C13-14 Isoparaffin, Polyvinyl Alcohol, Methylparaben, Propylparaben, Laureth-7, Diazolidinyl Urea, Xanthan Gum

Reviews

Alternatives

Ingredients Explained

These ingredients are found in both products.

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

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.

Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.

Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.

Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).

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.

Squalane is the hydrogenated and shelf-stable form of squalene (a lipid that naturally occurs in human sebum).

It is an emollient and skin conditioning agent that is able to integrate seamlessly into the skin's lipid barrier without clogging pores.

This is due to how structurally similar it is to what your skin already produces.

Though it is mostly an emollient that helps soften and hydrate skin, it also has some humectant and occlusive action. Humectants help the skin retain moisture while occlusives seal it in, making squalane a triple-threat moisturizer.

Research shows it has antioxidant capabilities that help protect against stressors like UV exposure, specifically UVA induced oxidative stress. This study also found that it supports collagen biosynthesis in human dermal fibroblasts.

No clinical study has reported significant adverse effects and irritation reactions are very rare from this ingredient (even at 100% concentration).

Overall, it's a fantastic ingredient for hydration and is suitable for all skin types.

This depends on the source. Squalane can be derived from both plants and animals. Most squalane used in skincare comes from plants.

Please note: the source of squalane is only known if disclosed by the brand. We recommend reaching out to the brand if you have any questions about their squalane.

Read more about squalene with an "e".

Though squalane is often called an oil, it’s technically not one. It is a hydrocarbon, meaning it is only made of carbon and hydrogen. True oils are triglycerides and made of fatty acids and glycerol.

The term “oil-free” isn’t regulated so companies can define it however they want. Some exclude all oils, while others just avoid mineral oil or comedogenic oils.

Squalane has a comedogenic rating of 1 from the original 1972 study that tested raw ingredients under occlusion on rabbit ears. This system is not standardized or peer-reviewed, and using the raw ingredients is very different from how diluted cosmetic formulations are used on human skin.

A comedogenic rating of 1 means it is "unlikely to clog pores" according to the original rating system.

The overall formula of a product matters more than the individual ingredients on whether or not it will cause clogged pores.

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!

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.

Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.

Similar Comparisons

The reference edit

Ingredients, questions
& further reading.

Connected source records selected through this article’s public topic index.

01

Formula cabinet

Ingredients & structured notes

Ingredient index

Ingredients Explained

  1. 01These ingredients are found in both products.
  2. 02Ingredients higher up in an ingredient list are typically present in a larger amount.
  3. 031,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
  4. 04It is a:
  5. 05Humectant, drawing moisture into the skin
  6. 06Emollient, helping to soften skin
  7. 07Solvent, dispersing and stabilizing formulas
  8. 08Preservative booster, enhancing the antimicrobial activity of other preservatives
  9. 09Ammonium Acryloyldimethyltaurate/Vp Copolymer is a synthetically created polymer. It's used as a film-forming agent and used to thicken the consistency of products.
  10. 10Think of it as a supportive ingredient that helps your gel-creams feel silky, "cloud cream-like", and spread evenly without being greasy.
  11. 11The Cosmetic Ingredient Review (CIR) Expert Panel evaluated it (along with 22 other acryloyldimethyltaurate polymers) and concluded it's:
  12. 12Due to its large molecular size, it sits on the surface of skin rather than penetrating it.
  13. 13Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
  14. 14The 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 …
  15. 15Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
  16. 16Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
  17. 17Topically, glycerin does several things at once:
  18. 18Your 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.
  19. 19Aquaporin-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.
  20. 20This 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.
Source · skinsort.com
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Product index

Related product references

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Comparison edit

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