Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo Versus Carina Organics Sweet Pea Daily Moisturizing Shampoo

K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo Versus Carina Organics Sweet Pea Daily Moisturizing Shampoo What's inside Key Ingredients No key ingredients Benefits Concerns Ingredients Side-by-side Water Sodium C14-16 Olefin Sulfonate Cocamidopropyl Betaine So

K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo Versus Carina Organics Sweet Pea Daily Moisturizing Shampoo

What's inside

Key Ingredients

No key ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Sodium C14-16 Olefin Sulfonate

Cocamidopropyl Betaine

Sodium Methyl 2-Sulfolaurate

Sodium Lauryl Sulfoacetate

Sh-Oligopeptide-78

Panthenol

Glycerin

Sodium Phytate

Guar Hydroxypropyltrimonium Chloride

Disodium 2-Sulfolaurate

Caprylyl Glycol

Caprylhydroxamic Acid

Benzoic Acid

Citric Acid

Sodium Hydroxide

Parfum

Limonene

Water, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl 2-Sulfolaurate, Sodium Lauryl Sulfoacetate, Sh-Oligopeptide-78, Panthenol, Glycerin, Sodium Phytate, Guar Hydroxypropyltrimonium Chloride, Disodium 2-Sulfolaurate, Caprylyl Glycol, Caprylhydroxamic Acid, Benzoic Acid, Citric Acid, Sodium Hydroxide, Parfum, Limonene

Potassium Cocoate

Pinus Elliottii Extract

Pinus Pinea Kernel Extract

Magnesium Chloride

Olea Europaea Fruit Oil

Chamomilla Recutita Flower Extract

Urtica Dioica Leaf Extract

Taraxacum Officinale Leaf Extract

Trifolium Pratense Flower Extract

Acetic Acid

Lathyrus Odoratus Flower Extract

Cyamopsis Tetragonoloba Gum

Potassium Cocoate, Glycerin, Pinus Elliottii Extract, Pinus Pinea Kernel Extract, Magnesium Chloride, Olea Europaea Fruit Oil, Chamomilla Recutita Flower Extract, Urtica Dioica Leaf Extract, Taraxacum Officinale Leaf Extract, Trifolium Pratense Flower Extract, Acetic Acid, Lathyrus Odoratus Flower Extract, Cyamopsis Tetragonoloba Gum

Alternatives

Ingredients Explained

These ingredients are found in both products.

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

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.

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The reference edit

Ingredients, questions
& further reading.

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

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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. 03Charcoal powder comes from grounded charcoal. Charcoal can originate from peat, bamboo, coal, wood, coconut shell, or petroleum.
  4. 04This ingredient has absorbent properties, making it great at absorbing oil.
  5. 05Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
  6. 06Topically, glycerin does several things at once:
  7. 07Your 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.
  8. 08Aquaporin-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.
  9. 09This 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.
  10. 10Just know very high concentrations (>40%) can feel tacky in low humidity.
  11. 11Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
  12. 12Limonene is a fragrance that adds scent and taste to a formulation.
  13. 13It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".
  14. 14Limonene acts as an antioxidant, meaning it helps neutralize free radicals.
  15. 15When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.
  16. 16The term '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, the…
  17. 17Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
  18. 18Also 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.
  19. 19For 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 regul…
  20. 20The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.
Source · skinsort.com
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