Your only healthy affair.

retinal is an advanced form of vitamin a, derived from carotenoids like beta-carotene in carrots and leafy greens. it sits midway between retinol and retinoic acid, offering potency without the irritation of prescription retinoids. retinal is also the molecule that allows vision, acting as the chromophore in the retina. in scalp and skin formulations it refreshes the skin’s surface. this makes it a standout retinoid that is both effective and gentle.

vitamin c is abundant in citrus fruits, peppers, and broccoli, and is an essential water-soluble nutrient. in 1933 it became the first vitamin to be made in a laboratory. it is used in supplements and topicals.

niacinamide is present in meats, grains, and green vegetables. unlike niacin, it does not cause the “niacin flush,” making it more comfortable to use. in skincare it is valued for calming the look of redness, reinforcing barrier lipids, and improving elasticity. in scalp care it strengthens the surface barrier.

biotin is naturally found in eggs, nuts, and legumes, and is one of the b vitamins. its name comes from the greek “biotos,” meaning life.

vitamin e is found in nuts, seeds, and green vegetables, and is a fat-soluble antioxidant. fun fact: wheat germ oil is one of the richest sources of vitamin e. widely used in serums, supplements, and oils, it improves comfort and boosts shine.

panthenol, pro-vitamin b5, occurs in plants and animal tissues. on the surface it acts as a humectant. it is also called the “beauty vitamin,” because it is present in countless conditioners and shampoos. in scalp care it boosts hydration, soothes, and adds softness and flexibility to hair strands.

vitamin b12 is found only in animal products such as meat, dairy, and eggs, and contains cobalt as its central atom, one of the rarest elements in biology. in supplements it is often combined with biotin.

vitamin d3 is produced in the skin when exposed to sunlight and is also present in fatty fish and eggs, which is why it is often called the sunshine vitamin.

zinc is concentrated in oysters (the richest natural source of zinc), seeds, and nuts. it is also used topically to regulate oil and support scalp clarity.

magnesium is abundant in nuts, mineral-rich water, and leafy greens, as it is the core of the chlorophyll molecule in plants. magnesium sulfate has long been used in baths.

calcium, the most abundant mineral in the body, is found in dairy, almonds, and leafy greens. 99% of it is stored in bones and teeth.

selenium occurs in brazil nuts, seafood, and whole grains. two brazil nuts can be enough for most people to meet daily selenium needs.

sodium chloride occurs naturally in seawater, salt mines, and even human tears. the word “salary” comes from “sal,” the latin word for salt, as roman soldiers were once paid in it. today, it is used in cosmetics to refine texture and stabilize formulas.

hydrolyzed collagen is derived from animal connective tissues such as fish, bovine, or pig cartilage. collagen is the body’s most abundant protein. hydrolysis breaks collagen into smaller peptides. collagen fibers can stretch up to 25% of their length without breaking.

copper peptides are naturally present in plasma and saliva, where the tripeptide ghk binds copper ions. they are recognized by their striking blue color, and were discovered in the 1970s.

hydrolyzed keratin is the broken-down form of the protein that makes up nearly 90% of human hair. sourced from natural wool or feathers, its smaller peptides can penetrate the hair shaft and bind to damaged areas, reinforcing structure and restoring elasticity. it works by filling microscopic gaps and rebuilding the cuticle layer, leading to smoother, stronger strands with improved shine. keratin is so tough that its name comes from the greek word keras, meaning “horn,” the same material that forms rhino horns and tortoise shells.

l-cysteine is a sulfur-rich amino acid found in eggs, meat, and dairy. fun fact: perms in salons work by breaking and reforming the bonds between cysteine units in the hair fiber.

salicylic acid is a beta hydroxy acid originally derived from willow bark, now synthesized for purity and stability. it gently exfoliates, dissolving dead skin cells on the scalp surface. fun fact: it is a close relative of aspirin, and willow bark, its natural source, was used by ancient egyptians thousands of years ago.

sodium hyaluronate is the salt form of hyaluronic acid, naturally found in skin, joints, and eyes. produced via fermentation, it is famous for holding up to 1,000 times its weight in water. babies have the highest natural levels of hyaluronic acid in their bodies. in scalp care it penetrates better than larger hyaluronic acid molecules, deeply hydrating and soothing tissue for comfort and flexibility.

castor oil is a viscous, nutrient-rich oil extracted from the seeds of ricinus communis. prized since ancient egypt, it’s packed with ricinoleic acid, a rare fatty acid that locks in moisture. in hair formulations, it nourishes the scalp and provides a protective barrier that reduces breakage and dryness. castor oil was found in tombs dating back over 4,000 years—cleopatra is believed to have used it as both a hair gloss and lash treatment.

ceramides are naturally occurring lipids that make up about half of the skin’s protective barrier. arranged between cells like mortar between bricks, they lock in moisture and block external irritants. in the scalp, ceramides strengthen the lipid barrier and reduce transepidermal water loss. the word “ceramide” comes from the latin “cera,” meaning wax, reflecting their dense, wax-like molecular texture. originally identified in pig brain tissue in the 19th century, ceramides are now biotechnologically replicated or derived from plants such as wheat and rice. in topical hair care, they help rebuild barrier integrity, improve hydration, and enhance the resilience of both scalp and strand.

glycerin is a clear, non-toxic humectant obtained from plant oils like soy and coconut. first discovered in 1779, it became known as the universal hydrator for its ability to draw water into the skin and hair. in scalp products it prevents dryness, flaking, and brittleness. glycerin is also used in foods as a sweetener and stabilizer. it works together with other moisturizers to leave scalp and hair soft, bouncy, and hydrated.

lecithin is a mixture of phospholipids found in eggs, soybeans, and sunflower seeds. its name comes from the greek word for “egg yolk,” where it was first identified. in formulations it acts as an emulsifier, blending oil and water for smooth, stable textures. biologically it is a core part of cell membranes. it is also the ingredient that makes chocolate so silky-smooth. in scalp and hair care it adds softness and reinforces the barrier.

water is the universal solvent and forms the majority of cosmetic bases. it enables the dissolution, transport, and even application of active ingredients. fun fact: water is the only substance found naturally on earth as solid, liquid, and gas. purified by advanced filtration, it ensures safety and stability in products. in scalp and hair care it contributes to hydration.

citric acid is a fruit acid found in citrus and first isolated from lemon juice in 1784. in cosmetics it regulates pH, balancing comfort and stability. it also provides gentle exfoliation that improves scalp clarity and hair shine. it is widely used in “clean label” products for its natural origin and safety profile. citric acid optimizes ingredient performance while extending product freshness.

potassium sorbate is derived from sorbic acid, discovered in mountain-ash berries in the 19th century. it is a safe preservative that keeps mold, yeast, and fungi out of a formula. it is also used in food preservation for wines, cheeses, and baked goods. in scalp and hair products it provides microbiological safety without irritation. it is particularly important for formulas with higher water or plant content.

sodium benzoate is the sodium salt of benzoic acid, found in cranberries, prunes, and spices like cinnamon and cloves. one of the oldest preservatives, it offers broad protection against bacteria, yeast, and fungi. benzoic acid was first discovered in gum benzoin, long used in incense and perfumes. gentle and effective, sodium benzoate is often paired with potassium sorbate for synergistic safety. it is especially important in water-rich hair and skincare formulations.

ethanol is produced by fermenting grains or fruits and is the same molecule found in alcoholic beverages. in cosmetics it functions as a solvent and carrier, enabling actives to dissolve. it also contributes antimicrobial action and a refreshing, quick-dry feel. in fact, it is the same alcohol that powers hand sanitizers. in hair serums ethanol ensures clarity, stability, and rapid scalp absorption without greasiness.

triethanolamine, or TEA, is a formulation stabilizer that helps balance acidity and create a uniform texture in emulsions. though synthesized, it mimics natural buffering systems found in the body. it was first developed in the early 20th century as a way to keep creams smooth and pH-balanced for long-term storage. in cosmetic products, it ensures actives remain evenly distributed and effective across the formula.

phenoxyethanol is a globally approved preservative that protects products from bacteria and mold. it occurs naturally in green tea and chicory, though cosmetic forms are synthesized for stability and purity. it was one of the first “next-generation” preservatives to replace parabens in modern skincare. in lash and eye treatments, it ensures long-term safety and freshness without affecting sensitive skin.