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Polyhydroxy acids (PHAs) are the new and improved cousins of alpha hydroxy acids (AHAs). They work as chemical exfoliants, and are therefore useful in skincare. They work slowly, which makes them fairly mild. People with sensitive skin can use PHAs without any problem.
PHAs remove dead skin cells from the uppermost layers of skin to reveal soft, bright skin. If you have dull, tired-looking skin, PHAs are the right ingredient for you. They also have antioxidants that protect the skin from UV damage, and make the skin’s barrier stronger. PHA protects collagen from breaking down, which keeps your skin looking younger for longer.
They are mild, so they work slowly – which may not be what you want. PHAs are exfoliants, so be careful when you start using them, especially if your skin is sensitive or damaged. Skin that reacts to new products may find PHAs irritating, mild as they are. Pregnant and breastfeeding women, and people with skin infections or open wounds should avoid using PHAs.
Fine lines are the delicate lines that form on delicate skin (like the face), as collagen and elastin decrease. These shallow lines can appear when the skin is dehydrated or as a result of sun damage. They can also be among the first signs of skin aging and, if they deepen over time, can be the precursor to wrinkles. Usually found around the eyes, lips, and forehead, fine lines can appear anywhere that expressive facial movement are regularly repeated—such as smiling, squinting and furrowing the brows.
To prevent fine lines and wrinkles, it’s best to moisturize daily and wear sunscreen. Additionally, antioxidants protect the skin from free radicals that damage cells and speed up aging. Ingredients and nutrients like rosehip oil, jojoba oil, red tea extract, retinol/vitamin A, coenzyme Q10, glycolic acid and salicylic acid are all beneficial for preventing and reducing fine lines and wrinkles. Peptides and ingredients that boost the production of collagen like vitamin C are good for boosting the plumpness of skin, reducing the appearance of fine lines and wrinkles.
PHA may be effective for fine lines, but there are many other factors that may affect whether this ingredient would work on your skin or if there are better ingredients that may work for you. Take this skin quiz to find the best ingredients for your skin and build your skincare routine.
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