BUYER & FORMULATOR FAQ
Direct answers for better ingredient decisions.
Use these evidence-aware guides to prepare supplier reviews, document requests, sample evaluations and formulation discussions.
HOW TO USE THIS LIBRARY
Start with the decision you need to make.
Each page answers one practical question, gives a review framework and states where supplier documents, customer testing or market-specific confirmation are still required.
The library does not publish supplier rankings, invented market data or unsupported regulatory conclusions.
Documents
Documents questions
What documents should a cosmetic ingredient supplier provide?
A useful first document set normally includes a current product specification, TDS, SDS and a batch-specific COA. Depending on the ingredient and target market, buyers may also need identity, composition, origin, allergen, contaminant, stability or regulatory statements. The documents must refer to the same product code, grade and supplier entity.
Read direct answer →Procurement, R&D and quality teamsWhat is the difference between TDS, SDS, Specification and COA?
TDS explains the product and typical technical use. SDS covers safe handling and hazard communication. The Specification defines the limits a product is expected to meet. A COA reports the actual test results for one batch. Buyers normally need all four because they answer different questions.
Read direct answer →Quality, procurement and formulation teamsHow should buyers evaluate a cosmetic ingredient COA?
Start by confirming that the COA belongs to the correct product and batch. Then compare every reported result with the current approved specification, including the method, unit and acceptance limit. A COA is useful only when its identity, batch traceability and results are internally consistent.
Read direct answer →Procurement
Procurement questions
How can I request a cosmetic ingredient sample from China?
Send the supplier the exact ingredient or product code, target grade, intended dosage form, project stage, destination country and the documents you need. A useful sample request is a technical screening request, not only a shipping request.
Read direct answer →Purchasing and sourcing teamsWhat information is needed for a cosmetic ingredient quotation?
A supplier can prepare a more useful quotation when the buyer provides the product code or grade, required quantity, delivery country, trade term, packaging requirement and target purchasing timeline. Application and documentation needs should also be included when they affect grade selection.
Read direct answer →R&D, quality and purchasing teamsHow should buyers compare botanical extract specifications?
Do not compare botanical extracts by price or extract ratio alone. First align botanical species, plant part, extraction solvent, carrier, marker or active content, analytical method and contaminant limits. Products with similar names may represent materially different grades.
Read direct answer →Procurement and supply-chain teamsHow do MOQ, lead time and packaging affect cosmetic ingredient sourcing?
MOQ determines the smallest commercial quantity available under a given grade and package. Lead time depends on stock, production, testing, document release and transport. Packaging affects unit size, handling, protection and freight. These three items should be confirmed together, not separately.
Read direct answer →Formulation
Formulation questions
How should formulators evaluate ingredient solubility, pH and processing conditions?
Treat supplier guidance as a starting point, then test the actual ingredient grade in the complete formula. Screen the intended solvent system, addition sequence, temperature, target pH and interactions with electrolytes, surfactants, polymers and other actives.
Read direct answer →R&D, regulatory and marketing teamsCan ingredient research support finished cosmetic product claims?
Ingredient research can support technical rationale and help design a finished-product evaluation, but it does not automatically prove that every formula containing the ingredient will deliver the same result. Finished-product claims should reflect the actual formula, use level, test design, target population and applicable market rules.
Read direct answer →Supplier Evaluation
Supplier Evaluation questions
PROJECT SUPPORT
Have a product-specific question?
Send the product code, target grade, application and market so our team can route your question correctly.