Technical resource

How to Review a Cosmetic Ingredient COA, TDS and SDS

2026-11-09

实际上，即使文件齐全，也可能仍然无法明确成分标识、测试方法或批次适用性。

对于配方师、质量团队和采购经理而言，化妆品原料的分析证书 (COA)、技术数据表 (TDS ) 和安全数据表 (SDS) 的审核是一个决策过程。它将所需的原料、报价等级、测试批次、提供的操作信息以及后续的配方工作联系起来。每份文件都回答不同的问题。分析证书 (COA) 报告选定的测试结果。技术数据表 (TDS) 描述原料及其预期技术用途。安全数据表 (SDS) 传达危险性、操作和应急信息。

这些文件相互配合，但并不互相替代。分析证书（COA）并不能解释所有加工条件。技术数据表（TDS）并不能证明特定批次的产品符合规格。安全数据表（SDS）也不能批准某种原材料用于成品化妆品配方。明确这些界限有助于买方避免过早批准，并使供应商提出的问题更加精准。

本指南提供了一套实用的化妆品原料审核流程，涵盖植物提取物、肽类、抗氧化剂、发酵衍生原料及其他功能性成分。指南还阐明了哪些问题应由研发、质量保证、环境健康安全（EHS）和采购部门负责，以及何时出现差异需要补充新文件或新样品。

每份文件旨在证明什么

首先，为每个文件赋予明确的用途。许多文档问题都源于买家将市场宣传资料当作产品规格说明书，或者期望一个文件就能解答所有问题。

COA：受测批次实际报告的内容

分析证书 (COA) 记录特定物料的选定分析或质量结果。换句话说，它将结果与已定义的产品和审核范围关联起来。最实用的 COA 会将结果与产品名称、等级和批号关联起来。它还会注明规格限值、实际结果、单位，以及（如适用）测试方法或方法参考。

分析证书 (COA) 可以是批次特定的，也可以是代表性的。批次特定的 COA 适用于证书上标识的批次。代表性的 COA 显示供应商通常报告的检测结果类型，但并不确认即将发货的批次。请要求供应商明确标注此区别。

根据成分的不同，分析证书 (COA) 可能包含外观、鉴别、含量测定、标记化合物、水分、pH 值、密度、微生物限度、重金属、残留溶剂或其他属性。但是，该清单应符合约定的规范。如果 COA 文件中未明确标明测试方法、基准或批次，则更长的 COA 并不一定更好。

技术数据表：材料的描述和使用方法

By contrast, a TDS gives the technical context that a COA usually does not. It may describe the INCI name, CAS number, physical form, appearance, recommended applications, solubility or dispersion notes, storage conditions, packaging and shelf life. Some TDS files also include suggested use levels or process notes.

Therefore, treat recommended use information as a starting point for formulation work. A TDS can help a formulator design a screening plan, but it cannot establish that the material will work in every emulsion, serum, cleanser, mask or scalp-care system. The buyer still needs to test the offered grade in the intended base and process.

SDS: how to handle the material safely

An SDS serves hazard communication and workplace safety. It helps EHS and quality teams review classification, handling, storage, personal protection, first aid, accidental release, transport and disposal information. The document should identify the supplier, product and revision date, and it should be appropriate for the destination market and workplace requirements.

An SDS can still be supplied for a material that is not classified as hazardous under a particular system. That does not make the SDS a COA, and it does not mean that the raw material has been approved for a finished cosmetic product. Review the SDS for its intended safety communication purpose.

Why the three files must be read together

For example, a COA may show an assay result, while the TDS explains whether the product is a powder, dispersion or carrier-based format. The SDS may identify handling precautions that affect sampling or storage. Therefore, compare the same product name, grade, physical form and supplier identity across all three files.

If a file uses a different trade name, carrier, salt form or concentration basis, pause the review. The difference may be harmless, or it may mean that the files describe different materials. Resolve the identity before using the documents to approve a sample or compare quotations.

How to review a cosmetic ingredient COA

Start with identity and document control

Before reading the numbers, confirm that the document belongs to the material under review. Check the following fields:

• Product or commercial name
• INCI name and, where applicable, CAS or EC number
• Supplier name and manufacturing or supply entity
• Grade, concentration, carrier or physical format
• Lot or batch number
• Manufacturing, release, retest or expiry information, where applicable
• COA issue date and document revision
• Authorized release or approval reference

In addition, the product name should match the quotation, sample label, TDS and SDS. If the COA says “extract powder” while the TDS describes a liquid carrier system, ask whether the supplier has sent the wrong document or whether two grades exist under a similar name.

Separate specification limits from actual results

A COA normally contains two kinds of information: the acceptance criteria and the result for the tested lot. Keep them separate during review. “Assay: minimum 98%; result: 99.2%” is more useful than “high purity.” The same principle applies to moisture, marker compounds, microbial counts and contaminant limits.

Ask how the result is expressed. An assay may be reported on an as-is basis, dry basis, anhydrous basis or another defined basis. A botanical extract may show total extract solids and a marker compound percentage. Those values describe different properties and should not be substituted for one another.

Check the test method and unit

Without a method, a result is difficult to interpret or compare. Review:

• Test method name or reference number
• Unit of measure
• Reporting basis
• Detection or quantification limit, where relevant
• Sampling or preparation note, where relevant
• Whether the method is internal, compendial or performed by an external laboratory

For this reason, the method should make sense for the material identity. For example, an assay method for a defined molecule may not answer the same question as a marker method for a botanical extract. If two suppliers use different methods, ask whether the results are comparable before ranking the materials.

Review appearance and identity results

In some cases, appearance can reveal a change that a numerical result misses. Record the stated color, odor, physical form and any limits for visible particles, clarity or sedimentation. Then check how identity was confirmed. Depending on the material, the supplier may use an instrumental method, chromatographic profile, reaction or another defined procedure.

Appearance alone cannot establish identity. Conversely, a passing identity check does not guarantee that the material will be compatible with the intended formula. Use the COA as one part of the evidence chain.

Check microbiological and contaminant information when relevant

The required tests depend on the ingredient, source, process and buyer specification. Therefore, define the risk before adding a test. A botanical or fermentation-derived material may require microbiological limits. Other projects may require information on heavy metals, pesticides, residual solvents, aflatoxins, allergens or process-related impurities.

Do not add a test to the approval checklist simply because it appears on another supplier’s COA. Instead, define the risk and the applicable specification for the material and destination market. If a result is reported as “complies” without the limit or method, request the underlying criteria.

Decide whether the COA is representative or lot-specific

This distinction changes the approval decision. Use the following questions:

• Does the lot number on the COA match the sample or shipment?
• Is the document marked representative, example or typical?
• Is the result for the exact grade and carrier being quoted?
• Will the supplier issue a lot-specific COA before shipment?
• Does the buyer’s quality system require an original or verified electronic document?

A representative COA can support initial supplier screening. It should not be treated as proof that a future bulk lot meets the same result.

How to review a cosmetic ingredient TDS

Confirm the technical identity and format

Read the identity section together with the COA. Confirm the INCI name, CAS number where applicable, grade, concentration, carrier, physical form and source. For extracts, check species, plant part, extraction route and marker information. For peptides, check the sequence or naming convention, salt form and assay basis when those fields are relevant to the product.

A trade name may cover more than one grade. Therefore, record the exact product code or grade in the internal material specification instead of copying only the marketing name.

Review physical and formulation properties

Next, the TDS should give the formulator enough information to plan a bench screen. Depending on the ingredient, review:

• Appearance, color and odor
• Solubility or dispersion guidance
• Recommended phase or addition point
• pH or temperature notes
• Compatibility cautions
• Suggested storage conditions
• Packaging and handling requirements
• Shelf-life statement and retest expectations

These notes guide testing; however, they do not replace testing. A “water soluble” description may depend on concentration, temperature, order of addition or pH. Ask for the conditions behind the statement when the formulation is sensitive to clarity, sedimentation or viscosity.

Treat application guidance as a starting point

A TDS may list skincare, haircare, scalp-care, cleansing or other applications. That list helps a buyer assess relevance, but it does not prove finished-product performance or a consumer claim. The buyer must evaluate the offered grade in the intended formula and document the result.

For practical formulation planning, the Cosveta applications page can be used alongside the product-specific TDS. The formulation team should still confirm process order, pH, heat exposure, packaging and finished-product stability for each project.

Check storage, packaging and shelf life

For warehouse and laboratory handling, storage wording should be specific enough to support the actual material. Look for temperature range, light or moisture protection, resealing instructions, packaging format and shelf-life or retest language. Compare those instructions with the sample label and shipping conditions.

If the TDS says “store cool and dry” but the SDS or packaging label gives a different condition, ask the supplier which instruction applies to the offered grade. Record the answer in the material review rather than silently choosing one document.

Check document revision and change history

A TDS can be technically correct and still be outdated for the quoted grade. Record the issue date, revision number and supplier contact. Ask whether a change to source, process, manufacturing site, carrier, specification or packaging has occurred since the previous version.

A document update does not automatically mean the material changed; however, it does require a review of the affected fields. It does mean the buyer should understand what changed in the document and whether the internal specification or sample plan needs revision.

How to review a cosmetic ingredient SDS

Use the SDS for EHS and hazard communication

First, route the SDS to the people responsible for workplace safety, storage, transport and emergency response. Review the sections that matter to the project, including identification, hazard classification, composition, first aid, firefighting, accidental release, handling, exposure controls, physical and chemical properties, stability, toxicological information, disposal and transport.

Because the regulatory format can vary by destination and update cycle, check the applicable local requirements. For a general framework, buyers can consult the U.S. OSHA Hazard Communication Standard and the European Chemicals Agency guidance on safety data sheets. These official sources support a safety-document review; they do not replace the supplier’s current SDS or the buyer’s local assessment.

Check product identity, supplier identity and revision date

At minimum, compare the SDS product identifier with the quotation, sample label, TDS and COA. Confirm the supplier’s legal or trading identity, emergency contact and revision date. If the SDS identifies a different legal entity from the COA, ask how the entities relate to the offered material and supply route.

The revision date matters because hazard classification, composition information, transport rules or contact details may change. Consequently, retain the reviewed version. Keep the version reviewed by the buyer and record when the next review is due.

Understand the limits of an SDS

An SDS does not confirm assay, purity, microbiological limits, formulation performance or lot release. It also does not establish that a finished cosmetic product is safe, compliant or suitable for a particular consumer claim. Use it to control material handling and to identify questions for EHS and quality teams.

When the SDS contains a broad composition range, ask whether the range represents the full material, a hazardous component threshold or a confidential formulation basis. Do not copy an SDS composition range into the raw-material specification without understanding what it represents.

Compare COA, TDS and SDS before approving the supplier file

The following table keeps the documents distinct while showing where a cross-check is necessary. In practice, use it before assigning approval status.

COA vs TDS vs SDS for cosmetic ingredient review

A document can be useful without being sufficient for approval. For example, a clear TDS may support a sample screen while a lot-specific COA is pending. For example, a clear TDS may support a sample screen while the buyer waits for a lot-specific COA. In contrast, an attractive COA cannot resolve an unexplained difference in product form or supplier identity.

Use a document decision matrix

A second matrix helps teams record what to do when evidence is missing or inconsistent. As a result, the file review produces a traceable action.

The matrix prevents a team from turning “document received” into “material approved.” Approval should follow the evidence required for the project, not the number of files in the email thread.

A practical review workflow for R&D, QA and procurement

Step 1: Write the material review brief

To begin, state the ingredient name, target grade, intended product format, destination market, expected quantity and required documents. Include any special needs such as marker content, microbiological limits, allergen information, residual solvents, packaging or storage.

As a result, a clear brief helps a supplier send the correct files. It also gives internal reviewers one reference point when a document uses a trade name or a different description.

Step 2: Build the document register

Next, create a simple register with columns for file name, document type, product identity, grade, lot, revision date, supplier entity, reviewer, open questions and next action. Add the received date and the date the file was superseded.

For a B2B ingredient program, the register is more reliable than a shared folder full of similarly named PDFs. It shows which file was used for a decision and prevents an old TDS from being attached to a new COA.

Step 3: Review identity before technical claims

Compare the INCI name, CAS number, commercial name, grade, carrier, concentration, physical form and source. If the material is an extract, compare botanical species, plant part, solvent and marker. If it is a peptide or defined active, compare the naming, salt form and assay basis.

Only after identity matches should the team interpret assay, application guidance or formulation notes. Otherwise, the review may combine evidence from different grades.

Step 4: Review the COA against the specification

Check lot applicability, limits, results, units, methods and release information. Mark each field as confirmed, missing, inconsistent or not applicable. Ask the supplier to explain any result reported only as “pass” or “complies.”

If the COA is representative, keep it in the supplier-screening section and create a separate requirement for the lot-specific document.

Step 5: Use the TDS to plan the sample screen

Then select the tests that answer the project’s main risk. Depending on the ingredient, those may include dispersion, pH compatibility, color, odor, heat exposure, order of addition, phase behavior, packaging exposure or short observation under relevant storage conditions.

In addition, record the sample lot and document version beside the formulation result. That link matters when a supplier changes the grade or when a pilot material behaves differently from the original sample.

Step 6: Route the SDS to the right reviewers

Meanwhile, EHS and warehouse teams should review handling, storage, PPE, accidental release, transport and disposal information. QA should check that the product identifier and supplier information match the other files. Logistics should confirm that transport instructions fit the shipment route.

Step 7: Close discrepancies in writing

Do not resolve a document conflict through memory or an undocumented phone call. Instead, write the question and file the answer. Write the question in a short, specific format:

• Which product code and grade does the supplied COA cover?
• Is the carrier included in the assay basis?
• Which storage condition applies to the sample and commercial pack?
• Will the shipment include a lot-specific COA?
• Which SDS revision should EHS retain?

Then file the answer with the document register and update the internal decision.

Step 8: Decide the next approval stage

Finally, the outcome may be approved for sample testing, approved with an open document action, pending clarification, rejected for technical mismatch or escalated for a more formal supplier review. Use a defined status rather than a vague “looks fine.”

For supplier review support, Cosveta’s quality documentation page provides the appropriate route for discussing COA, TDS, SDS and related technical files. Buyers can also review the Cosveta ingredient portfolio before sending the exact grade and application context through the sample and quotation contact route. Use the technical resources page to connect this document review with the wider qualification workflow.

Summary: use the document pack to make a traceable decision

A cosmetic ingredient COA TDS SDS review works when each file has a defined job. Therefore, define the document purpose before judging completeness. The COA supports lot or representative quality review. The TDS supports technical and formulation planning. The SDS supports safe handling and hazard communication.

Start with identity, grade and supplier. Then check COA limits and results, TDS properties and application notes, and SDS handling information. Compare the files against the sample label and quotation. Finally, record open questions, close discrepancies in writing and approve only the stage supported by the evidence.

As the comparison table shows, no single document is enough. A representative COA may support supplier screening but not final lot approval. A TDS may guide a sample screen but not prove finished-product performance. An SDS may control warehouse handling but not establish assay or formulation suitability.

Before requesting a quotation, prepare the ingredient name, target grade, finished-product format, destination market, sample or bulk quantity and required documents. Then send the brief to Cosveta for a current technical file review and the next appropriate supply step.

下载并请求路线

下载： COA–TDS–SDS Review Sheet — 在出版前将其准备为单页审阅模板。

来自 Cosveta 的要求：请提供成分、等级或目标规格、配方格式、目标市场、数量以及贵团队所需的确切文件。

常见问题解答

COA（分析证书）和规格书是一回事吗？

不。规格说明定义了材料的验收标准。分析证书 (COA) 则针对特定批次或代表性材料，根据这些标准报告选定的结果。买方应将这两份文件进行比较，而不是用分析证书代替当前的规格说明。

代表性的COA能否用于批量审批？

通常，代表性的分析证书 (COA) 可用于供应商筛选或早期技术评审。对于批量审批，请询问供应商是否会提供针对已发货批次的批次特定分析证书，以及批次、等级和测试方法是否符合已批准的规格。

技术数据手册（TDS）能否证明某种成分适用于我的配方？

不。技术数据表 (TDS) 提供技术背景信息，并可能建议应用或处理条件。配方师仍需在目标体系中测试相容性、工艺顺序、外观、稳定性以及成品性能。

TDS和SDS的主要区别是什么？

相比之下，技术数据表 (TDS) 阐述产品开发的技术特性、应用和操作指南。安全数据表 (SDS) 则传达危险性、预防措施、应急措施、运输和处置方法。这两份文件用于不同的审查目的。

当 COA、TDS 和 SDS 使用不同的名称时，我该怎么办？

如果名称不一致，请暂停审批，并要求供应商提供每个文件中包含的确切产品代码、等级、载体、来源和法定供应实体信息。在继续审核样品或报价之前，请将澄清信息记录在文件登记册中。

化妆品成分文件能否证明成品符合相关规定？

不。供应商提供的文件仅支持原材料资质认证。买方仍需负责通过适当的内部和监管流程评估最终配方、目标市场要求、产品安全性和任何公开声明。

出版前核实说明

在发布此草案之前，Cosveta 应核实：

• 实际供应商实体和技术审核人员。
• 目前各产品类别有哪些 COA、TDS 和 SDS 文件可供查阅？
• 质量页面是否准确列出了文档类型和响应路径。
• 实际样品、报价和技术文件申请流程。
• CTA 中提到的可下载的 COA–TDS–SDS 审查表。
• 最终文章的网址及其在资源页面中的位置。
• 当前外部参考网址及其在目标市场中的适用范围。

本文是一份B2B原材料文档指南。它应与消费者使用建议、医疗声明、剂量指导以及未经证实的认证或成品性能声明区分开来。