Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

Paula's Choice Skin Perfecting 2% BHA Gel Exfoliant Versus Pixi Beauty Glow Tonic

Paula's Choice Skin Perfecting 2% BHA Gel Exfoliant Versus Pixi Beauty Glow Tonic This pore-care exfoliator is formulated around Salicylic Acid and Phytosphingosine to refine the look of pores and refine skin texture. This smoothing toner is formulated around

Paula's Choice Skin Perfecting 2% BHA Gel Exfoliant Versus Pixi Beauty Glow Tonic

This pore-care exfoliator is formulated around Salicylic Acid and Phytosphingosine to refine the look of pores and refine skin texture.

This smoothing toner is formulated around Glycolic Acid and Aloe Barbadensis Leaf Juice to refine skin texture and brighten dull-looking skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Methylpropanediol

Butylene Glycol

Polysorbate 20

Salicylic Acid

Phytosphingosine

Hydroxyethylcellulose

Vitis Vinifera Seed Extract

Camellia Oleifera Leaf Extract

Epilobium Angustifolium Extract

Bisabolol

Tetrasodium EDTA

Sodium Hydroxide

Water, Methylpropanediol, Butylene Glycol, Polysorbate 20, Salicylic Acid, Phytosphingosine, Hydroxyethylcellulose, Vitis Vinifera Seed Extract, Camellia Oleifera Leaf Extract, Epilobium Angustifolium Extract, Bisabolol, Tetrasodium EDTA, Sodium Hydroxide

Glycolic Acid

Glycerin

Aloe Barbadensis Leaf Juice

Hamamelis Virginiana Water

Aesculus Hippocastanum Seed Extract

Hexylene Glycol

Fructose

Glucose

Sucrose

Urea

Dextrin

Alanine

Glutamic Acid

Aspartic Acid

Hexyl Nicotinate

Panax Ginseng Root Extract

Ethylhexylglycerin

Disodium EDTA

Biotin

Panthenol

PPG-26-Buteth-26

PEG-40 Hydrogenated Castor Oil

Phenoxyethanol

Parfum

Caramel

Benzyl Benzoate

Citral

Citronellol

Coumarin

Geraniol

Hexyl Cinnamal

Hydroxycitronellal

Limonene

Linalool

CI 14700

Water, Glycolic Acid, Sodium Hydroxide, Butylene Glycol, Glycerin, Aloe Barbadensis Leaf Juice, Hamamelis Virginiana Water, Aesculus Hippocastanum Seed Extract, Hexylene Glycol, Fructose, Glucose, Sucrose, Urea, Dextrin, Alanine, Glutamic Acid, Aspartic Acid, Hexyl Nicotinate, Panax Ginseng Root Extract, Ethylhexylglycerin, Disodium EDTA, Biotin, Panthenol, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Phenoxyethanol, Parfum, Caramel, Benzyl Benzoate, Citral, Citronellol, Coumarin, Geraniol, Hexyl Cinnamal, Hydroxycitronellal, Limonene, Linalool, CI 14700

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.

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.

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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. 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. 06Ceramide NP (formerly known as Ceramide 3) is one of the skin's naturally occurring lipids.
  7. 07Since ceramides are the major lipid components of the skin, they are crucial for maintaining skin barrier and hydration. Ceramide NP most closely mirrors the dominant kind in human skin amongst ceramide subtypes.
  8. 08This ceramide works by slotting into gaps within the stratum corneum's lipid matrix to limit trans-epidermal water loss (TEWL) and shield the skin against external irritants.
  9. 09A study with 312 patients found that using a ceramide-containing routine for 4 weeks reduced the severity of atopic dermatitis by over 61%.
  10. 10Another clinical study in subjects aged 60 and older found that a ceramide body wash and moisturizer improved skin dryness and itchy skin in 15 days.
  11. 11Overall, ceramides are considered non-irritating and safety tests have found little to no observable adverse effects from using this ingredient.
  12. 12Ceramide NP is usually sourced from plants (like soybean or rice bran), or produced synthetically.
  13. 13Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
  14. 14Topically, glycerin does several things at once:
  15. 15Your 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.
  16. 16Aquaporin-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.
  17. 17This 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.
  18. 18Just know very high concentrations (>40%) can feel tacky in low humidity.
  19. 19Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
  20. 20Hydrogenated Lecithin is a more stable version of lecithin.
Source · skinsort.com
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Product index

Related product references

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Comparison edit

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