Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

Paula's Choice Moisture Boost One Step Face Cleanser Versus Tatcha The Rice Wash Skin-Softening Cleanser

Paula's Choice Moisture Boost One Step Face Cleanser Versus Tatcha The Rice Wash Skin-Softening Cleanser This gel cleanser uses mild cleansing ingredients, but contains alcohol that may feel drying for some. What's inside Key Ingredients Benefits Concerns Ingr

Paula's Choice Moisture Boost One Step Face Cleanser Versus Tatcha The Rice Wash Skin-Softening Cleanser

This gel cleanser uses mild cleansing ingredients, but contains alcohol that may feel drying for some.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Sodium Laureth Sulfate

Glycol Stearate

Methyl Gluceth-20

Glyceryl Stearate

Chamomilla Recutita Flower Extract

Aloe Barbadensis Leaf Juice

Cocamidopropyl Betaine

Sodium Cocoyl Glutamate

Disodium Cocoyl Glutamate

Sodium Hyaluronate

Sodium PCA

Hydroxyethylcellulose

Caprylyl Glycol

Hexylene Glycol

Propylene Glycol

Citric Acid

Phytic Acid

Phenoxyethanol

Water, Sodium Laureth Sulfate, Glycol Stearate, Methyl Gluceth-20, Glyceryl Stearate, Chamomilla Recutita Flower Extract, Aloe Barbadensis Leaf Juice, Cocamidopropyl Betaine, Sodium Cocoyl Glutamate, Disodium Cocoyl Glutamate, Sodium Hyaluronate, Sodium PCA, Hydroxyethylcellulose, Caprylyl Glycol, Hexylene Glycol, Propylene Glycol, Citric Acid, Phytic Acid, Phenoxyethanol

Microcrystalline Cellulose

Propanediol

Glycerin

Acrylates Copolymer

Sodium Caproyl Methyltaurate

Coco-Betaine

Parfum

Camellia Sinensis Leaf

Oryza Sativa Powder

Chondrus Crispus Extract

Betaphycus Gelatinum Extract

Lauryl Glucoside

Potassium Hydroxide

Polyquaternium-39

Disodium EDTA

Ethylhexylglycerin

Sodium Benzoate

Sodium Carbonate

Alcohol

Water, Microcrystalline Cellulose, Propanediol, Sodium Cocoyl Glutamate, Glycerin, Acrylates Copolymer, Sodium Caproyl Methyltaurate, Coco-Betaine, Parfum, Camellia Sinensis Leaf, Oryza Sativa Powder, Chondrus Crispus Extract, Sodium Hyaluronate, Betaphycus Gelatinum Extract, Lauryl Glucoside, Potassium Hydroxide, Polyquaternium-39, Disodium EDTA, Phenoxyethanol, Ethylhexylglycerin, Sodium Benzoate, Sodium Carbonate, Alcohol

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.

Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).

It 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.

On 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.

Another perk of this ingredient is that it stays functional across a wide pH range (3-10).

You'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.

Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.

Safety-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.

Adverse 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.

Sodium Cocoyl Glutamate is a gentle cleanser and surfactant. It is the sodium salt of the Cocoyl Glutamic Acid and comes from coconut oil. As a surfactant, it helps lift dirt and oil to be washed away.

Sodium Cocoyl Glutamate also has an emolliating effect and can help leave the skin feeling soft.

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.

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. 03Allantoin is a soothing ingredient known for its protective and moisturizing properties; it's basically a quiet workhorse ingredient you can find in a huge range of cosmetics.
  4. 04Though it can be derived from the comfrey plant, allantoin is produced synthetically for cosmetic products to ensure purity.
  5. 05Research shows it can encourage your skin cells to turn over and renew by stimulating keratinocyte and fibroblast proliferation.
  6. 06It also has mild keratolytic properties to help loosen and shed dead skin cells without being harsh.
  7. 07Studies also suggest allantoin can help calm inflammation by dialing down some of the chemical signals your skin sends out when it is irritated.
  8. 08This ingredient is typically used in the 0.1-0.5% range, and the FDA recognizes it as a skin protectant in OTC products up to 2%.
  9. 09Overall, allantoin is a wonderful addition to most routines; it is stable across a wide pH range (~4-8), works well with other ingredients, and is considered non-sensitizing/non-irritating.
  10. 10Fun fact: Allantoin is naturally occurring in comfrey root, beets, chamomile, and wheat sprouts. Our bodies even produce it as a byproduct of uric acid metabolism.
  11. 11Azelaic acid is a multitasker ingredient that helps treat acne, pigmentation, and irritation. It is a great option for sensitive skin.
  12. 12What makes it special?
  13. 13OTC Azelaic acid is usually available in concentrations from 10-15% and anything over requires a prescription.
  14. 14Here's what each tier does best:
  15. 15Unlike other acids, azelaic acid will not make your skin more photosensitive/sun sensitive.
  16. 16Though this ingredient is naturally occurring in grains like wheat, rye, and barley, it is usually synthetically created for cosmetics to ensure stability and effectiveness.
  17. 17Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
  18. 18Topically, glycerin does several things at once:
  19. 19Your 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.
  20. 20Aquaporin-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.
Source · skinsort.com
02

Product index

Related product references

03

Comparison edit

Read side by side