The library

Ingredient library

Every ingredient SkinAtlas knows about — all 2277 of them. What each one does, what it works well with, and what to watch for.

All 2277 ingredients — page 40 of 95

Humectant
Hydrolyzed Avocado Protein

Enzymatically or chemically hydrolyzed protein from avocado (Persea gratissima), yielding small peptides and amino acids. These fragments have affinity for skin and hair surfaces, forming a moisture-retaining film and providing a soft, smooth feel. Used in moisturizers, serums, and hair treatments.

humectantfilm-formerskin-conditioning agenthair-conditioning agent
Hydrolyzed peptides bind water and improve skin hydrationDeposits a protective film that reduces transepidermal water lossAmino acids derived from avocado protein support barrier function
Possible cross-reactivity in individuals with avocado or latex allergy (rare topical risk)
+ Hyaluronic Acid+ Glycerin
Humectant
Hydrolyzed C12-13 Alkyl Glyceryl Hyaluronate

A modified hyaluronic acid where C12-13 alkyl glyceryl groups are attached via hydrolysis, creating an oil-dispersible form with improved skin penetration.

humectantskin-conditioningfilm-forming
Amphiphilic hyaluronic acid derivative with both hydrophilic and lipophilic character, allowing deeper penetration than standard HAProvides lasting hydration and a smooth skin-feel through enhanced skin affinity
+ Sodium Hyaluronate+ Glycerin
Humectant
Hydrolyzed Collagen

Enzymatically broken-down collagen peptides that hydrate and condition the skin surface.

humectantconditioningfilm-forming
Attracts and holds moistureConditions skin surfaceLeaves a smooth, supple feel
Humectant
Hydrolyzed Conchiolin

A protein hydrolysate from pearl/shell conchiolin used as a moisturizing, film-forming conditioning agent in Japanese formulas.

humectantfilm-formingskin-conditioning
Binds water for hydrationForms a smoothing protective film
Low risk
Active
Hydrolyzed Conchiolin Protein
HYDROLYZED CONCHIOLIN PROTEIN

A hydrolysate of conchiolin, the structural protein from pearl/nacre (Pinctada spp.). Used in luxury Japanese skincare for its moisturising, conditioning, and film-forming properties.

skin-conditioningmoisturisingfilm-forming
Conditions and smooths skin surfaceMoisture-binding film-forming actionLuxury pearl-derived ingredient
Shellfish/animal-derived — patch test recommended for sensitive individuals
+ Sodium Acetylated Hyaluronate+ Trehalose
Humectant
Hydrolyzed Corn Starch
HYDROLYZED ZEA MAYS STARCH

A partial hydrolysate of corn (Zea mays) starch that acts as a film-former and skin-conditioning agent, distinct from the intact starch in its smaller molecular fragments and enhanced skin compatibility.

film-formermoisturizerskin-conditioning
Forms a light, moisture-retaining film on skinImproves texture and spreadabilityProvides mild humectant and skin-softening properties
Humectant
Hydrolyzed Extensin

Hydrolysate of extensin, the major hydroxyproline-rich glycoprotein (HRGP) of plant cell walls, cleaved into low-molecular-weight fragments for improved skin penetration. Most commonly sourced from carrot (Daucus carota). High hydroxyproline and glycosylated amino acid content parallels animal collagen, while abundant polysaccharide side chains confer water-binding and film-forming properties. Used in K-beauty effector serums for its skin-conditioning and moisture-retention activity.

humectantskin-conditioningfilm-forming
Reduces trans-epidermal water loss by forming a flexible hygroscopic film on the skin surface, keeping skin pliable and conditionedHigh polysaccharide side-chain content binds water molecules, functioning as an effective moisture reservoir in formulasPlant-derived hydroxyproline-rich glycoprotein — structurally resembles mammalian collagen and is used as a 'vegetable collagen' analog
+ Sodium Hyaluronate+ Glycerin+ Niacinamide
Other
Hydrolyzed Gardenia Florida Extract

A hydrolyzed extract from the fruit of Gardenia florida (gardenia/cape jasmine) yielding peptides, polysaccharides, and low-molecular-weight fractions used for skin conditioning and light film formation.

skin-conditioning agentfilm-forming agenthumectant
Hydrolyzed peptides and polysaccharides provide lightweight conditioning on skin surfaceHelps improve skin texture and suppleness
No known risks at typical cosmetic concentrations
Active
Hydrolyzed Ginseng Saponins

Hydrolyzed Ginseng Saponins are produced by enzymatic or acid hydrolysis of the triterpene saponins (ginsenosides) present in Panax ginseng root. The hydrolysis cleaves sugar moieties, yielding smaller aglycone and protopanaxadiol/protopanaxatriol metabolites (including Rh1, Rh2, Rg3, compound K) that have improved skin penetration versus intact high-molecular-weight saponins. Used in premium Korean skincare as a high-potency, bioavailable form of ginseng active.

skin-conditioningantioxidantanti-agingskin-brightening
Enzymatic or acid hydrolysis of intact Panax ginseng saponins (ginsenosides) produces smaller, more bioavailable aglycone forms (Rh1, Rh2, Rg3, compound K) that penetrate the stratum corneum more readily than native ginsenosidesHydrolyzed ginsenosides retain and in some cases exceed the antioxidant, anti-inflammatory, and skin-brightening activity of the parent saponins — with the added benefit of reduced molecular weight for topical deliveryStimulates collagen synthesis and inhibits matrix metalloproteinases in fibroblasts, supporting anti-aging and skin firming effects consistent with ginseng's longstanding reputation in East Asian skincare
+ Panax Ginseng Root Extract+ Niacinamide+ Sodium Hyaluronate
Humectant
Hydrolyzed Glycosaminoglycans

Hydrolyzed fragments of glycosaminoglycans (such as chondroitin sulfate and dermatan sulfate) that function as humectants and skin-conditioning agents, similar in concept to hydrolyzed hyaluronic acid.

humectantskin-conditioningbarrier-support
Binds and retains water in the skin for lasting hydrationSupports the extracellular matrix as a precursor to hyaluronic acid and chondroitinImproves skin plumpness and elasticity
Antioxidant
Hydrolyzed Haematococcus Pluvialis Extract

A protein hydrolysate of the astaxanthin-rich red-phase microalgae Haematococcus pluvialis, yielding skin-penetrating peptide fragments alongside the algae's native astaxanthin carotenoid for antioxidant and skin-conditioning effects.

antioxidantskin conditioninganti-inflammatoryphotoprotection support
Delivers astaxanthin — one of nature's most potent antioxidants — to defend against free radical damageHelps improve skin moisture and elasticityReduces UV-triggered oxidative stress and collagen breakdown
May impart a faint orange tint at high concentrationsAstaxanthin has very limited unaided dermal penetration due to high lipophilicity; encapsulated formulations deliver it more effectively
Emollient
Hydrolyzed Jojoba Esters

A hydrolyzed form of the waxy esters from jojoba seed oil used as a lightweight emollient and skin-conditioning agent.

emollientskin-conditioningfilm-former
Conditions and softens skinProvides a lightweight, non-greasy emollient feelImproves spreadability and skin texture
Humectant
Hydrolyzed Malt Extract

A hydrolyzed extract of malted barley (Hordeum vulgare) yielding a mixture of maltodextrins, amino acids, and simple sugars used as a humectant and skin-conditioning agent.

humectantskin-conditioning agentfilm-forming agent
Hydrolyzed sugars and amino acids attract and retain moistureMay help improve skin smoothness and supplenessFermented/enzymatic origin provides gentle bioavailability
No known risks at typical cosmetic concentrations
Active
Hydrolyzed Pearl

An enzymatic or acid hydrolysate of freshwater or marine pearl (nacre) yielding amino acids, calcium, and trace minerals that brighten, condition, and hydrate skin.

Skin-conditioningBrighteningMoisturizing
Rich in amino acids (glycine, alanine, aspartic acid, glutamic acid) that support skin hydration and elasticityInhibits melanin production, helping reduce the appearance of dark spots and dullnessProvides antioxidant protection against environmental stressors
Animal-derived ingredient (freshwater or marine bivalve); not veganPotential allergen for individuals with shellfish sensitivities — patch-test recommended
Antioxidant
Hydrolyzed Proanthocyanidin

Hydrolyzed Proanthocyanidin is a hydrolyzed form of proanthocyanidin (condensed tannins / oligomeric proanthocyanidins, OPCs), typically sourced from grape seed, maritime pine bark, or bilberry. Hydrolysis reduces polymer chain length, improving bioavailability and skin penetration. Proanthocyanidins are exceptionally potent antioxidants with documented MMP-inhibitory and collagen cross-linking activity, making them effective anti-aging and skin-firming actives beyond simple radical scavenging.

antioxidantanti-inflammatoryskin-conditioningcollagen-protecting
Hydrolysis of polymeric proanthocyanidins (condensed tannins from grape seed, pine bark, or bilberry) produces oligomeric/monomeric forms with dramatically improved skin penetration compared to intact high-molecular-weight tanninsProanthocyanidins are among the most potent natural antioxidants — free radical scavenging activity is 20× greater than vitamin C and 50× greater than vitamin E in some assaysInhibit collagen-degrading metalloproteinases (MMP-1, MMP-3) and cross-link collagen and elastin fibers, providing direct structural support for skin firmness and anti-aging activity
+ Tocopherol+ Ascorbic Acid+ Resveratrol
Other
Hydrolyzed Rice Bran Protein

Protein derived from rice bran that has been hydrolyzed for better skin and hair penetration.

skin-conditioninghair-conditioning
Strengthens hair and improves manageabilityConditions and smooths skinPlant-derived protein for cosmetic formulations
Humectant
Hydrolyzed Rice Extract

The enzymatically or chemically hydrolyzed form of rice (Oryza sativa) extract; yields smaller molecular weight saccharides and peptides for improved skin penetration and humectant activity.

humectantskin-conditioningbrightening
Hydrolyzed rice proteins and saccharides attract and retain moistureTraditional East Asian brightening ingredient rich in ferulic acid and vitamin B complexes
+ Niacinamide
Other
Hydrolyzed Rice Leaf Extract
HYDROLYZED RICE LEAF EXTRACT

Enzymatic or acid hydrolysate of rice (Oryza sativa) leaf protein. Yields amino acids and small peptides that condition and smooth skin.

skin-conditioning
Skin-smoothing and conditioningContains rice-derived amino acids and peptides
+ Sodium Hyaluronate+ Panthenol
Humectant
Hydrolyzed Rice Protein

Enzymatically hydrolyzed rice protein peptides that hydrate and condition the skin surface while forming a light film.

humectantconditioningfilm-former
Attracts and retains moistureConditions and softens the skin surfaceForms a light, smoothing film
Humectant
Hydrolyzed Sodium Hyaluronate

Enzymatically hydrolyzed sodium hyaluronate with very low molecular weight for deeper skin penetration and enhanced hydration.

humectant
Penetrates more deeply into skin than standard sodium hyaluronate due to smaller molecular weightProvides deeper, more lasting hydration
Humectant
Hydrolyzed Soy Protein

Enzymatically hydrolyzed soybean protein peptides used as a humectant and skin conditioner that helps retain moisture and smooth the skin surface.

humectantconditioningfilm-former
Attracts and retains moistureConditions skin surfaceLeaves a smooth, softening film
Soy-derived — individuals with soy allergies should exercise caution, though topical risk at cosmetic concentrations is generally very low
Active
Hydrolyzed Soybean Extract
HYDROLYZED SOYBEAN EXTRACT

A hydrolysate of soybean (Glycine soja) used as a skin-conditioning and mildly firming active. Contains isoflavones (genistein, daidzein) and peptides that condition and protect the skin.

skin-conditioninganti-agingmoisturising
Provides isoflavones and peptides with skin-firming actionMild brightening via melanogenesis inhibitionConditions skin texture
Soy-derived — those with soy allergy should patch test
+ Glycine Soja (Soybean) Sterols+ Tocopherol
Other
Hydrolyzed Sponge

A hydrolysate derived from marine sponge (typically Spongia species), used as a skin-conditioning agent that delivers marine-derived peptides and trace minerals.

skin-conditioningfilm-former
Provides skin-conditioning and smoothing effectsMay support skin barrier via marine-derived amino acids and minerals
Humectant
Hydrolyzed Vegetable Protein

A broad INCI category covering protein hydrolysates from plant sources (soy, wheat, rice, corn, pea, etc.) broken down into amino acids and peptide chains by acid, alkali, or enzymatic hydrolysis. Amino acids are NMF components that support the skin's natural moisture-retention capacity. Frequently used in formulas where specific protein sources are not disclosed or where a blend is intentional.

skin-conditioninghumectantfilm-forming
Amino acids and short peptides from plant protein hydrolysis mimic natural moisturizing factors (NMFs) in the stratum corneumSmall peptide fragments can help temporarily reinforce the skin's surface texture and smoothnessBroad term covering soy, wheat, rice, and other plant-sourced protein hydrolysates
Wheat-sourced HVP may cause reactions in individuals with wheat protein sensitivity or celiac disease if the product is used on broken skin
+ Hyaluronic Acid+ Glycerin+ Ceramide NP