Rm 218, Tangxing Digital Bld, #6 Tangxing Rd, Xi’an, Shaanxi, China +86 17791258855 [email protected]
Biotin (vitamin H) powder, specified on biotin by HPLC. Low-dose active; dilution and uniformity to your specification.
| Product Name | Biotin Powder |
| Active Marker | Biotin (vitamin H); assay as declared |
| Source | Synthetic biotin |
| Appearance | White powder |
| Form | Powder |
| Grade | Food grade |
| Assay | Biotin by HPLC; purity as declared |
| Solubility / Particle Size | Water-soluble; low dose; particle size to your specification |
| Certification | ISO 9001 · ISO 22000 · HACCP · Halal |
| MOQ | 1 kg |
| Packaging | 1 kg foil bag / 25 kg fibre drum |
| COA | Per batch; method, limit and result on one sheet |
| Shelf Life | 24 months, unopened |
| Storage | Cool, dry, protected from light |
| Delivery Time | 7 days |
| HS Code | 2936.29 (confirm with your broker) |
| CAS | 58-85-5 |
Biotin, also called vitamin H, supplied as a white powder and specified on biotin by HPLC. The dose is very low, so the specification is as much about dilution and uniformity as about the assay.
The powder is water-soluble and is used in capsules, tablets and premix blends. A diluted grade is available for low-dose formulas where weighing the pure active is impractical.
| Format | Size | Shell / base | Best for |
|---|---|---|---|
| Bulk powder | 1 kg / 25 kg | Food grade; particle size to your specification | Premix and capsules |
| Diluted powder | 1 kg / 25 kg | Carrier to your specification | Low-dose blends |
| Blend | 25 kg | With carriers or other vitamins | Contract blending and filling |
Biotin is a low-dose vitamin. The main formulation problem is not solubility but uniformity: a few milligrams in a blend have to be distributed evenly, so a geometric dilution or a pre-diluted grade is used.
The powder is water-soluble and stable in dry form. In a premix, the carrier and the particle size decide the flow and the segregation risk. The label claim and the overage are agreed before the batch.
Biotin is assayed by HPLC with identity confirmation. Uniformity is checked in the blend; moisture, heavy metals and microbiology are tested to the destination market's limits.
Send the biotin assay, the dilution ratio, the carrier, the application and the market. The most common mistake is to buy pure biotin for a low-dose blend without a dilution step; the second is to ignore the uniformity test.
Biotin is sold here as a food ingredient. No disease, hair, skin or nail claims are made or implied. The brand owner is responsible for the label and the permitted statements in the destination market.
Other products in this range:
| Calcium Gluconate Powder | Calcium gluconate, bulk powder |
| Multi-Mineral Tablets | 12 minerals in one tablet |
| Magnesium Glycinate Tablets | Chelated magnesium tablet |
| Vitamin K2 D3 Capsules | Vitamin K2 and D3 capsule |
No therapeutic or disease claims are made or implied. Documentation is available on request.
Shaanxi Rainwood Biotech Co., Ltd. is a botanical extract and food-ingredient manufacturer based in Xi’an, China. Since 2006 we have supplied powders, extracts and mineral salts to supplement brands and food manufacturers in North America, Europe and Asia.
For a pure powder, the things that decide whether a drum is usable are the mesh or D90, blend uniformity, moisture and the pack. That is where we focus — the powder itself, not capsule, tablet or gummy OEM. We supply 1 kg foil bags for sampling and 25 kg fibre drums for production, with a moisture barrier where the material needs it.
Every batch is released against a written specification. The COA states the method, the release limit and the batch result; the TDS, allergen statement, GMO statement and certificate copies are available before the order. Third-party testing by SGS or Eurofins can be arranged on request.
• ISO 9001 / ISO 22000 / HACCP / Halal-certified site
• Batch records and retention samples for traceability
• 1 kg sample, 25 kg production pack, 7-day lead time for stock grades
This page covers Biotin Powder in powder form; the current COA and TDS are available on request.

Certificates: ISO 9001 · ISO 22000 · HACCP · NSF · USDA Organic · EU Organic · Halal · IQNET