Earth Harbor Celestine Hydra-Peptide Replenishing Serum

Earth Harbor Celestine Hydra-Peptide Replenishing Serum Ingredients in Earth Harbor Celestine Hydra-Peptide Replenishing Serum explained: benefits, concerns, and detailed analysis of 43 ingredients including Water, Propanediol, and Glycerin A serum with 43 ingredients, including niacinamide, exfoliants, and vitamin E. This barrier-repair serum is formulated around Niacinamide to strengthen the skin barrier. Worth noting Contains Benzyl Alcohol, an EU-listed fragrance allergen. We independently verify ingredients, backed by peer-reviewed research. Suggest an update. Water Propanediol Glycerin Lactobacillus/Nereocystis Leutkeana Ferment Filtrate Niacinamide Punica Granatum Extract Laminaria Digitata Extract Caprylic/Capric Triglyceride Isoamyl Laurate Squalane Oryza Sativa Lipids Tocopherol Tremella Fuciformis Sporocarp Extract Sodium Hyaluronate Hydrolyzed Rice Protein Hydrolyzed Pea Protein Achillea Millefolium Extract Aloe Barbadensis Flower Extract Proline Glycine Betaine Coco-Caprylate/Caprate Lecithin Sorbitan Olivate Cetearyl Olivate Xanthan Gum Sclerotium Gum Pullulan Cetyl Palmitate Sorbitan Palmitate Benzyl Alcohol Citric Acid Phytic Acid Dehydroacetic Acid Lactic Acid Melia Azadirachta Flower Extract Corallina Officinalis Extract Coccinia Indica Fruit Extract Solanum Melongena Fruit Extract Simmondsia Chinensis Seed Extract Ocimum Sanctum Leaf Extract Ocimum Basilicum Flower/Leaf Extract Curcuma Longa Root Extract Water, Propanediol, Glycerin, Lactobacillus/Nereocystis Leutkeana Ferment Filtrate, Niacinamide, Punica Granatum Extract, Laminaria Digitata Extract, Caprylic/Capric Triglyceride, Isoamyl Laurate, Squalane, Oryza Sativa Lipids, Tocopherol, Tremella Fuciformis Sporocarp Extract, Sodium Hyaluronate, Hydrolyzed Rice Protein, Hydrolyzed Pea Protein, Achillea Millefolium Extract, Aloe Barbadensis Flower Extract, Proline, Glycine, Betaine, Coco-Caprylate/Caprate, Lecithin, Sorbitan Olivate, Cetearyl Olivate, Xanthan Gum, Sclerotium Gum, Pullulan, Cetyl Palmitate, Sorbitan Palmitate, Benzyl Alcohol, Citric Acid, Phytic Acid, Dehydroacetic Acid, Lactic Acid, Melia Azadirachta Flower Extract, Corallina Officinalis Extract, Coccinia Indica Fruit Extract, Solanum Melongena Fruit Extract, Simmondsia Chinensis Seed Extract, Ocimum Sanctum Leaf Extract, Ocimum Basilicum Flower/Leaf Extract, Curcuma Longa Root Extract 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! Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin. It’s often used to: Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent. Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum. Topically, glycerin does several things at once: Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3. Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin. This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products. Just know very high concentrations (>40%) can feel tacky in low humidity. Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine. According to a manufacturer, another name for this ingredient is seakelp bioferment. Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging. And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin. You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this. In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it. If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare. When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration. When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes. In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the No written reviews yet. Be the first to review this product. Search reviews by skin type, ingredient, or keyword. Earth Harbor is a American brand We're dedicated to providing you with the most up-to-date and science-backed ingredient info out there. The data we've presented on this page has been verified by a member of the SkinSort Team. · Updated June 27, 2025 • Added by jnm