Peptide Skincare & BeautySkin science and ingredient guides

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Pyunkang Yul Calming Deep Moisture Toner Versus The INKEY List Polyhydroxy Acid (PHA) Toner

Pyunkang Yul Calming Deep Moisture Toner Versus The INKEY List Polyhydroxy Acid (PHA) Toner Detailed comparison of Pyunkang Yul Calming Deep Moisture Toner versus The INKEY List Polyhydroxy Acid (PHA) Toner. This calming toner is formulated around Panthenol an

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Pyunkang Yul Calming Deep Moisture Toner Versus The INKEY List Polyhydroxy Acid (PHA) Toner Detailed comparison of Pyunkang Yul Calming Deep Moisture Toner versus The INKEY List Polyhydroxy Acid (PHA) Toner. This calming toner is formulated around Panthenol and Gluconolactone to calm redness and hydrate skin. This smoothing toner is formulated around Gluconolactone and Niacinamide to refine skin texture and brighten dull-looking skin. No concerns Water Propanediol Glycerin Dipropylene Glycol Butylene Glycol Caprylyl Glycol Hydroxyacetophenone Pentylene Glycol Betaine Panthenol C12-14 Pareth-12 Sodium Citrate Disodium EDTA Citric Acid 1,2-Hexanediol Sodium Hyaluronate Hydrolyzed Hyaluronic Acid Hydroxypropyltrimonium Hyaluronate Sodium Hyaluronate Crosspolymer Sodium Acetylated Hyaluronate Gluconolactone Centella Asiatica Extract Madecassoside Madecassic Acid Asiaticoside Asiatic Acid Camellia Japonica Flower Extract Melaleuca Alternifolia Leaf Extract Salvia Officinalis Leaf Extract Salix Alba Bark Extract Lonicera Japonica Flower Extract Water, Propanediol, Glycerin, Dipropylene Glycol, Butylene Glycol, Caprylyl Glycol, Hydroxyacetophenone, Pentylene Glycol, Betaine, Panthenol, C12-14 Pareth-12, Sodium Citrate, Disodium EDTA, Citric Acid, 1,2-Hexanediol, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Hydroxypropyltrimonium Hyaluronate, Sodium Hyaluronate Crosspolymer, Sodium Acetylated Hyaluronate, Gluconolactone, Centella Asiatica Extract, Madecassoside, Madecassic Acid, Asiaticoside, Asiatic Acid, Camellia Japonica Flower Extract, Melaleuca Alternifolia Leaf Extract, Salvia Officinalis Leaf Extract, Salix Alba Bark Extract, Lonicera Japonica Flower Extract Gluconolactone 3% Niacinamide 3% Aloe Barbadensis Leaf Juice Potassium Sorbate Sodium Benzoate PPG-26-Buteth-26 PEG-40 Hydrogenated Castor Oil Ethylhexylglycerin Sodium Hydroxide Water, Propanediol, Gluconolactone 3%, Niacinamide 3%, Pentylene Glycol, Glycerin, Aloe Barbadensis Leaf Juice, Potassium Sorbate, Sodium Benzoate, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, 1,2-Hexanediol, Caprylyl Glycol, Ethylhexylglycerin, Citric Acid, Sodium Hydroxide These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. It is a: Humectant, drawing moisture into the skin Emollient, helping to soften skin Solvent, dispersing and stabilizing formulas Preservative booster, enhancing the antimicrobial activity of other preservatives Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created. Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin. Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on). Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes. Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath. However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products. Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH. In skincare formulas, citric acid can: While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants. Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations. Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger. However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure. Gluconolactone is a PHA. PHAs are a great gentle alternative to traditional AHAs. When applied, Gluconolactone has the same affect on skin as AHAs such as lactic acid. It helps dissolve the dead skin cells in the top layer of your skin. This improves texture and brightens the skin. PHAs are more gentle than AHAs due to their larger structure. They do not penetrate as deeply as AHAs and take a longer time to dissolve dead cells. Studies show PHAs do not cause as much irritation. Gluconolactone has some interesting properties: In a 2004 study, Gluconolactone was found to prevent UV damage in mouse skin cells and has not been found to increase sun sensitivity. However, we still recommend wearing SPF daily. This ingredient is is an create