SKU: VV25091007
Crodasone Cystine
$15.99In stock
Usage Rate: Typical: use the supplied liquid active concentrate at supplier-recommended levels in leave-on formulas, delivering approximately 0.1–0.5% pure active in the finished product (1000–5000 ppm).
Packaging
Liquid sizes — 0.33 oz (10 mL) sample through bulk (US · metric)
Ships from FloridaSecure checkoutUsually ships in 1–2 business daysFree US shipping on $50+
ApplicationApplication in products: Hair sprays and serums Leave-in conditioners Shampoos with a restorative function Styling and thermal protection products Masks and intensive care It can also be used in: Men's cosmetics (hair strengthening, aftershave products) Professional cosmetics for colored hair Trichological cosmetics with targeted action
AppearanceLiquid active concentrate
Description
Crodasone Cystine at a glance
Crodasone Cystine is a liquid hair care active from Croda. It dissolves in water and is added at cool-down. The supplier specification lists hair sprays and serums, leave-in conditioners, shampoos with a restorative function and styling products. The name points to cystine, the amino acid that gives hair its strength. Confirm the full INCI and dose on the certificate of analysis and the Croda technical sheet.
INCI, use level and solubility
The INCI of Crodasone Cystine is Hydrolyzed Keratin (and) Cystine Bis-PG-Propyl Silanetriol. It is a clear to slightly hazy, viscous yellow-amber liquid that dissolves in water and is compatible with surfactants. The supplier gives 1.0 to 5.0% for hair care products, 3.0 to 6.0% for serums and concentrates, 2.0 to 7.0% for leave-on cosmetic formulas masks and up to 10% in professional lines, in line with the manufacturer guidance.
Why cystine matters for hair
Hair is mostly keratin, a protein with a very high share of cystine. Cystine links neighboring protein chains through disulfide bonds, which give hair its strength and shape. Bleaching, permanent coloring, perms and frequent heat styling break part of these bonds, and hair becomes weak, porous and prone to breakage. Bond-care actives are designed to support the hair structure so strands feel stronger and more resilient.
Formats
Leave-in conditioners and serums
Leave-on formats keep the active on the hair and suit daily care after coloring or heat styling.
Restorative shampoos
Shampoos with a appearance support message can carry the active as part of a bond-care range.
Hair sprays and styling
Styling products stay on the hair all day, so they are a smart place for a strengthening active.
How to use it
Add Crodasone Cystine to the water phase below 40 °C and stir until uniform. In conditioners, add it after the emulsion has cooled. Keep the final pH slightly acidic, which suits the hair surface. Follow the dose from the Croda technical sheet.
Partners
Bond-care ranges often combine strengthening and protective ingredients. Hydrolyzed keratin PG-propyl silanetriol adds a film-forming keratin story, and SymHair Thermo brings heat protection. More hair concentrates are in the actives catalog.
Characteristics
Supplier: Croda. Form: liquid. Solubility: water. Phase: water, cool-down. Listed uses: hair sprays and serums, leave-in conditioners, restorative shampoos, styling products. Full INCI and dose: stated on the CoA and technical sheet supplied with each lot.
Bond-care leave-in spray recipe, 100 g
Distilled water 87.70 g, Crodasone Cystine 3.00 g, cetrimonium chloride 1.50 g, glycerin 2.00 g, panthenol 1.00 g, hydrolyzed keratin 1.00 g, PEG-40 hydrogenated castor oil 0.80 g, fragrance 0.30 g, phenoxyethanol and ethylhexylglycerin 1.00 g, propanediol 1.00 g, lactic acid solution 0.70 g. Dissolve the conditioner, glycerin and panthenol in water, add keratin and Crodasone Cystine, premix the fragrance with the solubilizer and add it with propanediol and the preservative, then adjust the pH to about 4.5.
Testing
Tensile strength tests on bleached tresses, combing force measurements and breakage counts during repeated combing are the standard tools for strength claims. Compare treated tresses with a placebo.
Consumer instructions
Spray onto clean, towel-dried hair, comb through and style as usual. Use after every wash, especially before heat styling. Visible strength builds with regular use.
Dose guidance
Follow the Croda technical sheet. Leave-in products usually need less than rinse-off products, since nothing is washed away.
Why bond care is in demand
Bleaching, balayage and frequent heat styling have made weak, breaking hair one of the most common hair concerns. Bond-care products became a large category within a few years. Consumers now look for strength claims on shampoos, masks and leave-ins, not only on salon services. An amino acid based active with a clear cystine story fits that demand and is easy to explain on the label.
Storage
Store tightly closed in a cool place, away from heat and light.
Product Specifications
Usage RateTypical: use the supplied liquid active concentrate at supplier-recommended levels in leave-on formulas, delivering approximately 0.1–0.5% pure active in the finished product (1000–5000 ppm).
SolubilityWater-soluble liquid active concentrate. Add directly to the water phase during cool-down; avoid prolonged high heat.
StorageStore tightly closed in a cool, dry place away from light and heat. Refrigerate opened material where practical; respect supplier shelf life.
TDS / CoA available on request. Contact us
Frequently Asked Questions
What is cystine?
The sulfur-containing amino acid that forms the disulfide bonds in hair keratin.
Which hair types benefit most?
Chemically treated, colored, bleached or heat-styled hair that feels weak.
Which formats are listed?
Hair sprays and serums, leave-in conditioners, restorative shampoos and styling products.
