Who we are. Yuanqi Ingredients supplies cosmetic and nutraceutical ingredients to manufacturers and brands.
Registered entity: Chengdu YuanLab Biotech Co., Ltd. — USCC 91510181MAKXMCYP5D (verifiable in China's public registry).
Who this page is for
| This is for | This is not for |
|---|---|
|
|
Selecting ergothioneine for a topical formulation
This ergothioneine entry serves cosmetic formulation enquiries; nutritional use is handled through the oral entry. The ingredient name ERGOTHIONEINE and CAS 497-30-3 identify the substance, while the intended application determines the purchasing brief. CosIng includes skin conditioning among the functions listed for ergothioneine.
A listed ingredient function does not demonstrate the performance of your finished formula. The European Commission explains that an INCI name appearing in CosIng is not approval for cosmetic use. Give your safety assessor the proposed ergothioneine composition, concentration and product category for the destination market.
For a serum, cream or other topical project, tell us whether your brief calls for the ingredient alone or a preparation with other components. Ask for the complete proposed composition so your team can assess both ergothioneine and anything introduced with it.
Qualifying the cosmetic ergothioneine composition
Set an ergothioneine identity criterion separately from the assay target used to accept a cosmetic batch. Ask how the analytical method distinguishes the intended substance from accompanying impurities and how the concentration is expressed. Where your brief calls for L-ergothioneine, include the isomer identification requirement explicitly in the acceptance criteria.
The SCCS ingredient guidance treats chemical form, purity, isomer composition and accompanying impurities as distinct characterisation questions. Use those questions to request the analytical basis for the material offered rather than treating a single purity figure as its complete profile. For a diluted preparation, specify ergothioneine content in the supplied mixture and request the identities and amounts of solvents, preservatives and other additives.
Agree which impurity and microbiological information your cosmetic safety assessment needs before accepting the raw material. Ask us which matching composition records and batch results can be provided for your proposed purchase.
Planning ergothioneine incorporation and storage
For formulation trials, describe the solvent system, pH range, processing temperatures and time the ergothioneine will spend in solution. Request dissolution information measured under relevant conditions instead of assuming that a substance name predicts behaviour in your base. Assess the chosen ergothioneine material in the complete formula, including compatibility with the other ingredients.
Separate stability evidence for the incoming raw material from the results needed for your finished topical product. Ask for the packaging and storage conditions covered by any supplied ergothioneine stability information. Include transport conditions and planned use after opening when discussing handling with your production team.
For an aqueous cosmetic, plan microbiological specifications and preservation assessment for the actual formulation. The original EU cosmetics regulation lists raw-material and finished-product microbiological quality alongside product stability in Annex I, Part A. Send the cosmetic brief and your required tests with the enquiry so we can assess the proposed supply against those parameters.
Product identity
INCI name
| Form | INCI name | CosIng substance ID |
|---|---|---|
| — | ERGOTHIONEINE | 56156 |
CAS and formula (verified against PubChem)
| Form | CAS No. | Molecular formula | Molecular weight | PubChem CID |
|---|---|---|---|---|
| — | 497-30-3 | C9H15N3O2S | 229.30 | 5351619 |
Molecular formula and weight describe the substance identified by that CAS number. Confirmation that a specific batch matches this identity comes from the specification sheet and COA.
Specification
Specification: confirmed per inquiry against your target parameters.
Specification, COA, TDS and SDS
Ask for the specification sheet, COA, TDS and SDS of the item and form you are evaluating through Request Technical Documents, and we will confirm which are available.
Certificates: Ask us to confirm whether product-specific certificates are available, their issuer, scope and validity. Certificate copies are not published on this site.
Supply terms
| Item | Terms |
|---|---|
| Minimum order quantity | Based on the product's standard packaging; confirmed per inquiry. |
| Samples | Paid samples. |
| Pricing | Quoted per specification, quantity and delivery terms. |
| Lead time | In-stock materials: within 7 days after payment. Custom peptides: about 25 days. |
| Private label | Available with the customer's own brand label where required. |
Common specifications are listed for reference. If you need a different specification, send us your target parameters and we will match them from the manufacturers we buy from.