Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

L'Oreal Elvive Growth Booster Anti-Fall Scalp Serum Versus The Ordinary Multi-Peptide Serum for Hair Density

L'Oreal Elvive Growth Booster Anti-Fall Scalp Serum Versus The Ordinary Multi-Peptide Serum for Hair Density Detailed comparison of L'Oreal Elvive Growth Booster Anti-Fall Scalp Serum UK versus The Ordinary Multi-Peptide Serum for Hair Density. Water Alcohol D

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L'Oreal Elvive Growth Booster Anti-Fall Scalp Serum Versus The Ordinary Multi-Peptide Serum for Hair Density Detailed comparison of L'Oreal Elvive Growth Booster Anti-Fall Scalp Serum UK versus The Ordinary Multi-Peptide Serum for Hair Density. Water Alcohol Denat. Niacinamide Propylene Glycol Diaminopyrimidine Oxide Lactic Acid PEG-40 Hydrogenated Castor Oil Aminomethyl Propanol Limonene Zingiber Officinale Root Extract Benzyl Alcohol Linalool Acrylates/Beheneth-25 Methacrylate Copolymer Piroctone Olamine Citral Citronellol Hexyl Cinnamal Parfum Water, Alcohol Denat., Niacinamide, Propylene Glycol, Diaminopyrimidine Oxide, Lactic Acid, PEG-40 Hydrogenated Castor Oil, Aminomethyl Propanol, Limonene, Zingiber Officinale Root Extract, Benzyl Alcohol, Linalool, Acrylates/Beheneth-25 Methacrylate Copolymer, Piroctone Olamine, Citral, Citronellol, Hexyl Cinnamal, Parfum Propanediol Butylene Glycol Glycerin Caffeine Biotinoyl Tripeptide-1 Acetyl Tetrapeptide-3 Larix Europaea Wood Extract Pisum Sativum Extract Scutellaria Baicalensis Root Extract Triticum Vulgare Germ Extract Glycine Soja Germ Extract Trifolium Pratense Flower Extract Camellia Sinensis Leaf Extract Apigenin Oleanolic Acid Arginine Glycine Calcium Gluconate Zinc Chloride Gluconolactone Dextran Maltodextrin Hydroxyethylcellulose Xanthan Gum Pentylene Glycol Dimethyl Isosorbide Polysorbate 20 PPG-26-Buteth-26 Trisodium Ethylenediamine Disuccinate Sodium Metabisulfite Sodium Benzoate Phenoxyethanol Chlorphenesin Water, Propanediol, Butylene Glycol, Glycerin, Caffeine, Biotinoyl Tripeptide-1, Acetyl Tetrapeptide-3, Larix Europaea Wood Extract, Pisum Sativum Extract, Scutellaria Baicalensis Root Extract, Triticum Vulgare Germ Extract, Glycine Soja Germ Extract, Trifolium Pratense Flower Extract, Camellia Sinensis Leaf Extract, Apigenin, Oleanolic Acid, Arginine, Glycine, Calcium Gluconate, Zinc Chloride, Lactic Acid, Gluconolactone, Dextran, Maltodextrin, Hydroxyethylcellulose, Xanthan Gum, Pentylene Glycol, Dimethyl Isosorbide, Polysorbate 20, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Trisodium Ethylenediamine Disuccinate, Sodium Metabisulfite, Sodium Benzoate, Phenoxyethanol, Chlorphenesin These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Lactic Acid is another well-loved alpha hydroxy acid (AHA). It is gentler than glycolic acid but still highly effective. Its main role is to exfoliate the surface of the skin by loosening the “glue” that holds dead skin cells together. Shedding those old cells leads to smoother, softer, and more even-toned skin. Because lactic acid molecules are larger than glycolic acid, they don’t penetrate as deeply. This means they’re less likely to sting or irritate, making it a great choice for beginners or those with sensitive skin. Like glycolic acid, it can: Lactic acid also acts as a humectant (like hyaluronic acid). It can draw water into the skin to improve hydration and also plays a role in the skin's natural moisturizing factor (NMF) in the form of sodium lactate. Studies show it can boost ceramide production to strengthen the skin barrier and even help balance the skin’s microbiome. To get results, choose products with a pH between 3-4. Lower strengths (5-12%) focus on surface exfoliation; higher strengths (12% and up) can reach deeper in the dermis (deeper, supportive layer) to improve skin texture and firmness over time. Though it was originally derived from milk, most modern lactic acid used in skincare is vegan. It is made through non-dairy fermentation to create a bio-identical and stable form suitable for all formulations. When lactic acid shows up near the end of an ingredient list, it usually means the brand added just a tiny amount to adjust the product’s pH. Legend has it that Cleopatra used to bathe in sour milk to help reduce wrinkles. Lactic acid is truly a gentle multitasker: it exfoliates, hydrates, strengthens, and brightens. It's a great ingredient for giving your skin a smooth, glowing, and healthy look without the harshness of stronger acids. Read more about some other popular AHA's here: PEG-40 Hydrogenated Castor Oil is an emulsifier derived from castor oil. As an emulsifying agent, it helps other ingredients like fragrances and fat-soluble vitamins dissolve cohesively. Due to its large molecule size, it doesn't penetrate beyond the skin's surface. This ingredient has a solid regulatory track record; the CIR Expert Panel first concluded it was safe for use in cosmetics at concentrations up to 100% in 1997. A 2012 reassessment reaffirmed that finding. Safety studies have also found no irritation or evidence of toxicity. A 2019 study did find this ingredient to grow Malassezia, so this ingredient may not be fungal acne safe. 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 s