Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

The INKEY List C-50 Blemish Night Treatment Versus DR's Secret Moisturizer 6

The INKEY List C-50 Blemish Night Treatment Versus DR's Secret Moisturizer 6 This acne treatment is formulated around Sodium Ascorbyl Phosphate and Salicylic Acid to clear breakouts and refine skin texture. This hydrating treatment is formulated around Aloe Ba

The INKEY List C-50 Blemish Night Treatment Versus DR's Secret Moisturizer 6

This acne treatment is formulated around Sodium Ascorbyl Phosphate and Salicylic Acid to clear breakouts and refine skin texture.

This hydrating treatment is formulated around Aloe Barbadensis Leaf Juice to hydrate skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Propanediol

Sodium Ascorbyl Phosphate

Salicylic Acid

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Phenoxyethanol

Caprylyl/Capryl Glucoside

Xanthan Gum

Glycerin

Sodium Hydroxide

Madecassoside

Ethylhexylglycerin

Hydroxyacetophenone

Sodium Gluconate

Sodium Metabisulfite

Lecithin

Ascorbyl Palmitate

Nelumbo Nucifera Flower Extract

Nymphaea Coerulea Flower Extract

Tocopherol

Helianthus Annuus Seed Oil

Water, Propanediol, Sodium Ascorbyl Phosphate, Salicylic Acid, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Phenoxyethanol, Caprylyl/Capryl Glucoside, Xanthan Gum, Glycerin, Sodium Hydroxide, Madecassoside, Ethylhexylglycerin, Hydroxyacetophenone, Sodium Gluconate, Sodium Metabisulfite, Lecithin, Ascorbyl Palmitate, Nelumbo Nucifera Flower Extract, Nymphaea Coerulea Flower Extract, Tocopherol, Helianthus Annuus Seed Oil

Aloe Barbadensis Leaf Juice

Glyceryl Stearate

Cetyl Alcohol

Stearic Acid

Phenyl Trimethicone

Ethylhexyl Palmitate

Benzyl Alcohol

Sodium Lactate

Sodium Lauryl Sulfate

Sodium PCA

Sorbitol

Tetrasodium EDTA

Proline

Sodium Hyaluronate

Parfum

Chlorphenesin

Potassium Sorbate

Dehydroacetic Acid

Water, Glycerin, Aloe Barbadensis Leaf Juice, Glyceryl Stearate, Cetyl Alcohol, Stearic Acid, Phenyl Trimethicone, Ethylhexyl Palmitate, Benzyl Alcohol, Sodium Lactate, Sodium Lauryl Sulfate, Sodium PCA, Sodium Hydroxide, Sorbitol, Tetrasodium EDTA, Proline, Sodium Hyaluronate, Parfum, Chlorphenesin, Potassium Sorbate, Dehydroacetic Acid

Reviews

Be the first to review

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.

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.

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!

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. 03Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
  4. 04Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
  5. 05Though 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.
  6. 06Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
  7. 07Topically, glycerin does several things at once:
  8. 08Your 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.
  9. 09Aquaporin-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.
  10. 10This 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.
  11. 11Just know very high concentrations (>40%) can feel tacky in low humidity.
  12. 12Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
  13. 13Hyaluronic acid (HA) is a glycosaminoglycan (basically a long sugar chain) that your skin already makes on its own. In your skin, HA lives in the extracellular matrix and acts as the body's moisture reservoir.
  14. 14Topically, HA is a humectant that binds water and helps skin look more plump, smooth, and hydrated.
  15. 15The only catch is that HA isn't a single thing; it actually comes in a wide range of molecular weights (~50 - 2,000+ kDA) and size matters.
  16. 16Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
  17. 17This is why the best HA serums blend the two sizes together so you get the best of both worlds.
  18. 18The majority of cosmetic HA is produced by bacterial fermentation, typically using Streptococcus or Bacillus strains. Typical use levels in skincare sit around 0.1-2%.
  19. 19A clinical study using a 0.2% low-molecular weight HA gel showed improvement in facial seborrheic dermatitis with excellent tolerance.
  20. 20These are some other common types of Hyaluronic Acid:
Source · skinsort.com
02

Product index

Related product references

03

Comparison edit

Read side by side