16 Sections of a Safety Data Sheet (SDS) Explained for Cosmetic Brands

Quick Answer

Every compliant Safety Data Sheet (SDS) follows the same fixed, internationally standardised structure 16 sections, set out under the Globally Harmonised System (GHS) and legally required by REACH Annex II (EU) and UK/GB CLP. For a cosmetic brand, understanding these 16 sections matters most when reviewing the SDSs your raw material and fragrance suppliers give you because your safety assessor relies on this exact data to build your product's CPSR. This guide breaks down what each section actually contains, in plain English, and what a cosmetic formulator or brand owner should specifically look out for in each one.

Why the 16-Section Format Exists

Before the Globally Harmonised System was adopted, different countries used different hazard communication formats, which made international trade in chemicals confusing and inconsistent. The GHS developed under the United Nations standardised how hazards are classified and communicated worldwide. The EU implemented this through the CLP Regulation (EC) No 1272/2008 and the SDS content requirements through REACH Annex II. The UK maintains an equivalent framework under UK/GB CLP, enforced by the Health and Safety Executive (HSE).

The result is that an SDS issued in Germany, the UK, or the United States follows the same 16-section skeleton, even if some local regulatory details differ which makes it possible for a cosmetic brand sourcing ingredients internationally to read and compare supplier SDSs consistently.

The 16 Sections, Explained

Section 1,Identification

States the product name, recommended use, restrictions on use, and full contact details of the manufacturer or supplier, including an emergency phone number. For a cosmetic brand, this is where you confirm you have the SDS for the exact raw material grade and supplier you're actually purchasing from ingredient names can be deceptively similar across suppliers.

Section 2, Hazard Identification

Lists the GHS hazard classification (e.g. skin irritant, eye damage, flammable), the corresponding hazard pictograms, signal word ("Danger" or "Warning"), and hazard/precautionary statements. This is the section your safety assessor checks first when evaluating whether a raw material could pose a risk once formulated into your product.

Section 3, Composition / Information on Ingredients

Discloses the chemical identity and concentration (or concentration range) of hazardous components. Suppliers can legally withhold exact percentages as confidential business information in many cases, but must still provide enough detail for hazard and risk assessment. This section is critical input for your CPSR's quantitative formula review.

Section 4, First-Aid Measures

Describes what to do after exposure via inhalation, skin contact, eye contact, or ingestion, plus symptoms and any special treatment needed. Relevant mainly to manufacturing-site safety, not to end consumers, but useful reference if a workplace incident occurs during formulation or filling.

Section 5, Firefighting Measures

Specifies suitable extinguishing media, specific hazards arising from the substance (e.g. toxic fumes when burned), and protective equipment for firefighters. Mostly relevant for storage and warehouse risk assessments.

Section 6, Accidental Release Measures

Covers spill response: personal precautions, environmental precautions, and containment/clean-up methods. Important for your manufacturing or co-packing facility's safety procedures.

Section 7, Handling and Storage

Details safe handling precautions and storage conditions, including incompatibilities (e.g. materials that must be stored away from oxidisers or heat sources). Formulators should check this before combining multiple hazardous raw materials in the same workspace.

Section 8, Exposure Controls / Personal Protection

Lists occupational exposure limits and recommended personal protective equipment (gloves, eyewear, ventilation). Directly relevant to your manufacturing site's health and safety compliance when staff handle concentrated raw materials.

Section 9, Physical and Chemical Properties

Provides data like appearance, odour, pH, melting/boiling point, flash point, viscosity, and solubility. Formulators frequently reference this section for compatibility and stability testing during product development.

Section 10, Stability and Reactivity

Explains chemical stability, conditions to avoid, incompatible materials, and hazardous decomposition products. Useful when assessing how a raw material might behave over your product's shelf life.

Section 11, Toxicological Information

The single most important section for a cosmetic safety assessor, it summarises acute toxicity, skin/eye irritation and corrosion data, sensitisation potential, carcinogenicity, reproductive toxicity, and other toxicological endpoints. Your CPSR's toxicological profile for each ingredient draws directly from this data.

Section 12, Ecological Information

Covers environmental toxicity, persistence, bioaccumulation potential, and mobility in soil. Increasingly relevant as brands make sustainability claims and need to substantiate environmental safety.

Section 13, Disposal Considerations

Provides guidance on safe disposal of the substance, contaminated packaging, and waste handling in line with local waste regulations.

Section 14, Transport Information

States the UN number, proper shipping name, transport hazard class, and packing group if the material is classified as dangerous goods. This is the section freight forwarders and customs agents check most closely, and often the reason your logistics partner requests an SDS even for a "cosmetic-exempt" finished product.

Section 15, Regulatory Information

Lists safety, health, and environmental regulations specific to the substance, including its status under REACH, CLP, and other applicable frameworks (e.g. restricted substance lists).

Section 16, Other Information

Includes the SDS revision date, version history, abbreviations used, and any additional relevant information not captured elsewhere. Always check this date, an outdated SDS may not reflect the current hazard classification.

Which Sections Matter Most for a Cosmetic Brand

Not every section carries equal weight once you're formulating a finished cosmetic rather than handling bulk chemicals. In practice, cosmetic brand owners and their safety assessors focus heaviest attention on:

• Section 2 (Hazard Identification)  to understand what you're working with before formulation begins
• Section 3 (Composition)  to confirm exact ingredient identity for your CPSR
• Section 9 (Physical/Chemical Properties) for formulation compatibility and stability planning
• Section 11 (Toxicological Information) the core data feeding your safety assessment
• Section 14 (Transport Information) for shipping and logistics classification
• Section 15 (Regulatory Information) to flag any restricted-substance concerns early

How This Connects to Your CPSR

Your safety assessor cannot properly complete Part A of your Cosmetic Product Safety Report without accurate, current SDSs for every hazardous raw material in your formula. Missing, outdated, or incomplete SDSs are one of the most common causes of delay when brands commission a CPSR the assessor either has to chase suppliers directly or pause the assessment until the data arrives. Building a habit of collecting and filing SDSs the moment you onboard a new raw material supplier will materially speed up every future CPSR you commission.

Common Mistakes When Working With Supplier SDSs

Mistake #1, Using an outdated SDS. Hazard classifications and regulatory status change. Always check the revision date in Section 16 and request a current version if it's more than a couple of years old.

Mistake #2, Assuming a "no SDS available" response is fine. If a raw material is hazardous under CLP, the supplier is legally obligated to provide one under REACH Article 31. Push back if a supplier can't produce one.

Mistake #3, Confusing an SDS with a Certificate of Analysis (CoA) or Technical Data Sheet (TDS). These are three different documents. A CoA confirms batch-specific quality results; a TDS describes product performance and usage; only the SDS covers hazard classification and safety handling.

Mistake #4, Not keeping SDSs organised per formula version. If you reformulate, make sure the SDS set on file matches the exact current formula, not an earlier iteration.

Practical Checklist: Managing Supplier SDSs

• Request the current SDS at the same time you request a quote or sample from any new raw material supplier.
• Check the revision date (Section 16) before relying on any SDS for a live formulation project.
• File SDSs by raw material and cross-reference them against the exact formula version they support.
• Flag any raw material with hazard pictograms in Section 2 for early discussion with your safety assessor.
• Re-request SDSs periodically for long-term suppliers, since classifications can change without notice.
• Share the full SDS set with your safety assessor at the start of the CPSR process, not partway through.

Need help reviewing your raw material SDSs before your CPSR? NestQual prepares CPSRs, PIFs, and full compliance packs for cosmetic brands entering the UK, EU, and global markets  including reviewing your supplier documentation so nothing holds up your safety assessment.

Get a CPSR for your product See the Complete Compliance Pack

Sources

1. European Chemicals Agency, REACH Annex II , Guide to the Compilation of Safety Data Sheets echa.europa.eu
2. Health and Safety Executive (HSE), Chemical Classification, Labelling and Packaging (CLP) hse.gov.uk
3. European Parliament and Council, Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures (CLP) eur-lex.europa.eu
4. European Parliament and Council, Regulation (EC) No 1223/2009 on cosmetic products eur-lex.europa.eu
5. Cosmetic, Toiletry and Perfumery Association (CTPA), Safety of Cosmetics ctpa.org.uk

This article is for general information and does not constitute legal advice. Always confirm current requirements for your specific product and market with a qualified safety assessor or Responsible Person.