REVOX B77 JUST Lactic Acid + HA Versus Paula's Choice Skin Perfecting 8% AHA Gel Exfoliant

REVOX B77 JUST Lactic Acid + HA Versus Paula's Choice Skin Perfecting 8% AHA Gel Exfoliant Detailed comparison of REVOX B77 JUST Lactic Acid + HA versus Paula's Choice Skin Perfecting 8% AHA Gel Exfoliant. This smoothing exfoliator is formulated around Lactic Acid and Sodium Hyaluronate to refine skin texture and brighten dull-looking skin. This smoothing exfoliator is formulated around Glycolic Acid to refine skin texture and brighten dull-looking skin. Water Lactic Acid Propylene Glycol Potassium Hydroxide Sodium Hyaluronate Hydroxyethylcellulose Phenoxyethanol Acid Red 33 CI 17200 CI 19140 CI 16255 CI 28440 Water, Lactic Acid, Propylene Glycol, Potassium Hydroxide, Sodium Hyaluronate, Hydroxyethylcellulose, Phenoxyethanol, Acid Red 33, CI 17200, CI 19140, CI 16255, CI 28440 Glycolic Acid Sodium Hydroxide Chamomilla Recutita Flower Extract Aloe Ferox Leaf Juice Extract Camellia Oleifera Leaf Extract Panthenol Sodium PCA Butylene Glycol Polyquaternium-10 Sodium Benzoate Water, Glycolic Acid, Sodium Hydroxide, Chamomilla Recutita Flower Extract, Aloe Ferox Leaf Juice Extract, Camellia Oleifera Leaf Extract, Sodium Hyaluronate, Panthenol, Sodium PCA, Propylene Glycol, Butylene Glycol, Hydroxyethylcellulose, Polyquaternium-10, Phenoxyethanol, Sodium Benzoate Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Hydroxyethylcellulose is used to improve the texture of products. It is created from a chemical reaction involving ethylene oxide and alkali-cellulose. Cellulose is a sugar found in plant cell walls and help give plants structure. This ingredient helps stabilize products by preventing ingredients from separating. It can also help thicken the texture of a product. This ingredient can also be found in pill medicines to help our bodies digest other ingredients. 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. Propylene Glycol is a synthetic, colorless, odorless liquid that has been a staple in cosmetics for decades. It is a skin conditioning agent, humectant, and solvent. As a humectant, it draw water to the skin to reduce flaking and restore suppleness. It's also a solvent that helps dissolve other actives and keeps formulas stable across temperature changes. The CIR Expert Panel has confirmed this ingredient to be nontoxic and clinical studies show no sensitization at cosmetic use concentrations. True allergic reactions are quite rare: a 15-year retrospective study of 6,751 patients found only 0.31% had a positive reaction (and less than half were considered clinically relevant). It seemed that when sensitization does occur, it's most commonly linked to topical medication (like corticosteroids) and not cosmetics. Allergic contact dermatitis also appears largely limited to individuals with underlying skin conditions. Overall, propylene glycol is a well-studied ingredient that most people can tolerate without issue. Sodium Hyalu