Paula's Choice

RESIST BHA 9 TREATMENT

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Ingredient
Antioxidant,  Plant Extract,  Skin-Soothing, 

Boerhavia Diffusa

Best

Extract from a flowering plant. Studies on animals have shown that this plant has strong skin-soothing activity. Like all plant extracts, Boerhavia diffusa also has antioxidant ability.

Texture Enhancer,  Moisturizer,  Solvent, 

Butylene Glycol

Good

Commonly-used ingredient that has multiple functions in cosmetics, including as a texture enhancer. It’s similar to propylene glycol, but has a lighter texture.

Skin-Replenishing,  Skin-Restoring,  Moisturizer,  Solvent, 

Glycerin

Best

Also called glycerol or glycerine, glycerin is a humectant thatŠ—Ès present in all natural lipids (fats), whether animal or vegetable. It can be derived from natural substances by hydrolysis of fats and by fermentation of sugars; it also can be synthetically manufactured, which is usually the case with modern-day skincare products.Glycerin is a skin-replenishing and restoring ingredient, meaning it is a substance found naturally in skin, helping to establish normal balance and hydration. ItŠ—Ès one of the many substances in skin that helps maintain a healthy look and feel, defending against dryness and working to maintain skinŠ—Ès moisture level. Essentially, glycerin is a master at hydration, and works best when combined with other replenishing and emollient ingredients.Some people wonder whether using products with glycerin takes too much water from skin when there isnŠ—Èt enough humidity in the air. This can occur with pure glycerin (100% concentrationŠ—”an amount thatŠ—Ès never used in skincare products). Any humectant (including glycerin) used in pure form can increase water loss by attracting water from the lower layers of skin into the surface layers when the climate is too arid (low humidity). For this reason, glycerin and humectants are typically used in concentrations of 5% or less and always combined with other ingredients to soften skin. In fact, glycerin combined with other emollients and/or oils is a fundamental cornerstone of most moisturizers.References for this information:International Journal of Cosmetic Science, August 2016, ePublicationBritish Journal of Dermatology, July 2008, pages 23-34Journal of Cosmetic Dermatology, June 2007, pages 75-82Proceedings of the National Academy of Sciences, June 2003, pages 7,360-7,365

Cleansing Agent,  Emulsifier,  Surfactant, 

Polysorbate 20

Good

Emollient,  Uncategorized,  Viscosity Control, 

Propylene Glycol Dicaprylate/Dicaprate

Good

Gel-textured ingredient used in many lightweight moisturizers. ItŠ—Ès a mix of propylene glycol and capric acid, a fatty acid derived from plants.

Anti-Acne,  Exfoliant,  Skin-Soothing,  Whitening, 

Salicylic Acid

Best

Also called beta hydroxy acid (BHA), this multifunctional ingredient addresses many of the systemic causes of acne. Its primary benefit is as an exfoliant, helping shed dead skin in a way similar to how skin acts when we are younger. Because it has the ability to penetrate into the pore lining and exfoliate inside the pore as well as on the surface of skin, it is especially effective for reducing breakouts, including blackheads and whiteheads.In addition to these benefits, salicylic acid also has soothing properties to calm aggravated skin, can help minimize the appearance of an uneven skin tone, and has hydrating abilities that can result in smoother skin.References for this information:Clinical, Cosmetic, and Investigational Dermatology,ξAugust 2015, pages 455-461Clinical, Cosmetic, and Investigational Dermatology, November 2010, pages 135-142Seminars in Cutaneous Medicine and Surgery, September 2008, pages 170-176Journal of the American Academy of Dermatology, April 2007, pages 651-663International Journal of Cosmetic Science, February 2000, pages 21-52Seminars in Dermatology, December 1990, pages 305-308.

Skin-Soothing, 

Sea Whip

Best

Extract from a creature (Pseudopterogorgia elisabethae) that inhabits coral reefs, known for its skin-soothing properties, which makes it useful for all skin types, especially sensitive or redness-prone skin.References for this information: Journal of Inflammation (London), March 2009: https://journal-inflammation.biomedcentral.com/articles/10.1186/1476-9255-6-5 Journal of Natural Products, January 2001, pages 100Š—–102 Life Sciences, May 22, 1998, pages 401Š—–407

Solvent,  Miscellaneous, 

Water

Good

Most widely used cosmetic ingredient; water is almost always listed first on an ingredient label because it is usually the ingredient with the highest concentration in the formula. Despite claims of skinŠ—Ès need for hydration and claims regarding special types of water, it turns out that water may not be an important ingredient for skin. Only a 10% concentration of water in the outer layer of skin is necessary for softness and pliability in this part of the epidermis. Studies that have compared the water content of dry skin with that of normal or oily skin do not find a statistically significant difference in moisture levels between them.

Emulsifier,  Surfactant, 

PEG-8 Laurate

Antioxidant,  Emollient,  Viscosity Control,  Anti,  Solvent, 

Avena Sativa Peptide

Moisturizer,  Solvent, 

PEG-75

This unique, concentrated leave-on BHA exfoliant works wonders to improve the appearance of stubborn skin concerns such as enlarged or clogged pores, bumps, and patches of rough, dry skin. It’s suitable even for skin prone to milia.
Delivers controlled, sustained release of salicylic acid
Minimizes the appearance of enlarged pores
Diminishes the appearance of hard, white bumps
Use as the last step in your evening skincare routine
SKIN TYPES: All Skin Types
CONCERNS: Enlarged Pores, Anti-Aging, Bumpy Skin

Allergic ingredients not found