Skin science article
Bioderma Pigmentbio Night Renewer Versus Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant
Bioderma Pigmentbio Night Renewer Versus Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant This brightening night moisturizer is formulated around Ascorbyl Glucoside and Niacinamide to fade the look of dark spots and refine skin texture. This smoothing ex
Bioderma Pigmentbio Night Renewer Versus Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant
This brightening night moisturizer is formulated around Ascorbyl Glucoside and Niacinamide to fade the look of dark spots and refine skin texture.
This smoothing exfoliator is formulated around Salicylic Acid to refine skin texture and refine the look of pores.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycerin
Propanediol
Squalane
Ascorbyl Glucoside
Dipropylene Glycol
Niacinamide
Butylene Glycol
Polymethylsilsesquioxane
Hdi/Trimethylol Hexyllactone Crosspolymer
Carbomer
Sodium Hydroxide
Pentylene Glycol
Tocopheryl Acetate
C14-22 Alcohols
1,2-Hexanediol
Caprylyl Glycol
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Salicylic Acid
Sodium Citrate
Lysine
Azelaic Acid
C12-20 Alkyl Glucoside
Disodium Phosphate
Mannitol
Xylitol
Andrographis Paniculata Leaf Extract
Rhamnose
Sodium Metabisulfite
Potassium Phosphate
Saccharide Isomerate
Biosaccharide Gum-1
Glycyrrhiza Glabra Root Extract
Glyceryl Caprylate
Sodium Anisate
Sodium Levulinate
Fructooligosaccharides
Caprylic/Capric Triglyceride
Hexapeptide-2
Laminaria Ochroleuca Extract
Parfum
Water, Glycerin, Propanediol, Squalane, Ascorbyl Glucoside, Dipropylene Glycol, Niacinamide, Butylene Glycol, Polymethylsilsesquioxane, Hdi/Trimethylol Hexyllactone Crosspolymer, Carbomer, Sodium Hydroxide, Pentylene Glycol, Tocopheryl Acetate, C14-22 Alcohols, 1,2-Hexanediol, Caprylyl Glycol, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Salicylic Acid, Sodium Citrate, Lysine, Azelaic Acid, C12-20 Alkyl Glucoside, Disodium Phosphate, Mannitol, Xylitol, Andrographis Paniculata Leaf Extract, Rhamnose, Sodium Metabisulfite, Potassium Phosphate, Saccharide Isomerate, Biosaccharide Gum-1, Glycyrrhiza Glabra Root Extract, Glyceryl Caprylate, Sodium Anisate, Sodium Levulinate, Fructooligosaccharides, Caprylic/Capric Triglyceride, Hexapeptide-2, Laminaria Ochroleuca Extract, Parfum
Methylpropanediol
Polysorbate 20
Camellia Oleifera Leaf
Tetrasodium EDTA
Water, Methylpropanediol, Butylene Glycol, Salicylic Acid, Polysorbate 20, Camellia Oleifera Leaf, Sodium Hydroxide, Tetrasodium EDTA
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.
Salicylic 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, and reduce inflammation.
Unlike 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.
Salicylic 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.
Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.
It 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.
While salicylic acid does not increase sun sensitivity, it’s still important to wear sunscreen daily to protect your skin.
If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.
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!