Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

The INKEY List Hyaluronic Acid Serum Versus No7 Hyaluronic Acid Capsules

The INKEY List Hyaluronic Acid Serum Versus No7 Hyaluronic Acid Capsules This hydrating serum is formulated around Sodium Hyaluronate and Hyaluronic Acid to hydrate skin and strengthen the skin barrier. This hydrating treatment is formulated around Camellia Ja

The INKEY List Hyaluronic Acid Serum Versus No7 Hyaluronic Acid Capsules

This hydrating serum is formulated around Sodium Hyaluronate and Hyaluronic Acid to hydrate skin and strengthen the skin barrier.

This hydrating treatment is formulated around Camellia Japonica Seed Oil and Hydrolyzed Sodium Hyaluronate to hydrate skin and strengthen the skin barrier.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Propanediol

Sodium Hyaluronate

Glycerin

Butylene Glycol

Phenoxyethanol

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Leuconostoc/Radish Root Ferment Filtrate

Hyaluronic Acid

Carbomer

Sodium Lactate

Polysorbate 20

Palmitoyl Tetrapeptide-7

Palmitoyl Tripeptide-1

Water, Propanediol, Sodium Hyaluronate, Glycerin, Butylene Glycol, Phenoxyethanol, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Leuconostoc/Radish Root Ferment Filtrate, Hyaluronic Acid, Carbomer, Sodium Lactate, Polysorbate 20, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1

Dimethicone

Caprylic/Capric Triglyceride

Dimethicone/Vinyltrimethylsiloxysilicate Crosspolymer

Silica

Ethylhexyl Palmitate

Dimethiconol

Camellia Japonica Seed Oil

Tocopheryl Acetate

Ricinus Communis Seed Oil

Hydrolyzed Sodium Hyaluronate

Diethylhexyl Syringylidenemalonate

Silica Dimethyl Silylate

Bisabolol

Hydrogenated Castor Oil

Pentylene Glycol

Zingiber Officinale Root Extract

Lactic Acid/Glycolic Acid Copolymer

Palmitoyl Tetrapeptide-50

Polyvinyl Alcohol

Heptapeptide-15 Palmitate

Dimethicone, Caprylic/Capric Triglyceride, Dimethicone/Vinyltrimethylsiloxysilicate Crosspolymer, Silica, Ethylhexyl Palmitate, Dimethiconol, Camellia Japonica Seed Oil, Tocopheryl Acetate, Ricinus Communis Seed Oil, Hydrolyzed Sodium Hyaluronate, Diethylhexyl Syringylidenemalonate, Silica Dimethyl Silylate, Bisabolol, Sodium Hyaluronate, Hydrogenated Castor Oil, Pentylene Glycol, Butylene Glycol, Zingiber Officinale Root Extract, Lactic Acid/Glycolic Acid Copolymer, Palmitoyl Tetrapeptide-50, Polyvinyl Alcohol, Heptapeptide-15 Palmitate

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.

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.

Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.

In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.

Interestingly, the size of the molecule affects its behavior:

Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.

Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.

You'll typically see concentrations between 0.1-2% for this ingredient.

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. 03Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
  4. 04It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
  5. 05On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
  6. 06Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
  7. 07You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
  8. 08Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
  9. 09Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
  10. 10Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
  11. 11Salicylic Acid (also known as beta hydroxy acid or BHA) is a well-known ingredient for treating skin that struggles with acne and clogged pores. It exfoliates both the skin's surface and deep within the pores to help clear out buildup, control oil, …
  12. 12Unlike AHAs (alpha hydroxy acids), salicylic acid is oil-soluble. This allows it to penetrate into pores which makes it especially effective for treating blackheads and preventing future breakouts.
  13. 13Salicylic acid is also known for its soothing properties. It has a similar structure to aspirin and can calm inflamed or irritated skin, making it a good option for acne-prone skin that is also sensitive.
  14. 14Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.
  15. 15It can cause irritation and/or dryness if one's skin already has a compromised moisture barrier, so it's best to focus on repairing that before introducing this ingredient into your routine.
  16. 16While salicylic acid does not increase sun sensitivity, it’s still important to wear sunscreen daily to protect your skin.
  17. 17If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.
  18. 18Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.
  19. 19In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
  20. 20Interestingly, the size of the molecule affects its behavior:
Source · skinsort.com
02

Product index

Related product references

Product

The Inkey List Bakuchiol

The Inkey List Bakuchiol The Inkey List Bakuchiol ingredients explained: Aqua (Water/Eau), Squalane, Glycerin, Propanediol, Plukenetia Volubilis Seed Oil (Sacha Inchi Oil), Dicaprylyl Carbo…

Source: incidecoder.comView reference →
03

Comparison edit

Read side by side