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Cosmetic Testing Lab
Blog

Blog

Guides and insights on cosmetic testing & EU compliance.

February 26, 2025
Stability

Cosmetic Colour Change and Stability: What Stability Tests Check

Cosmetic colour change stability explained: why colour, odour and pH shift, what stability tests check and how to set acceptance criteria.

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February 21, 2025
Stability

Cosmetic Light Stability: Do Clear Bottles Ruin Your Formula?

Cosmetic light stability explained: which ingredients are light-sensitive, how clear and tinted packs differ and how to test a pack against a dark control.

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February 16, 2025
Stability

Natural Cosmetics Stability: Special Challenges and Solutions

Natural cosmetics stability: why oils oxidise, preservation is harder and extracts change, plus how to test and protect a natural formula before launch.

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February 11, 2025
Patch Test & Skin Safety

Patch Test Volunteers: How Many Are Needed?

Patch test volunteers number explained: why panel size matters, what a few dozen volunteers can and cannot show, and how to plan a skin compatibility study.

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February 6, 2025
Patch Test & Skin Safety

Cosmetic Irritation vs Allergy: How to Tell the Difference

Cosmetic irritation vs allergy: how the two skin reactions differ, what causes each, and how brands can reduce risk with formulation, testing and labelling.

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February 1, 2025
Labelling & Claims

Non-Comedogenic Claim: What Testing and Proof You Need

Non comedogenic claim explained: what it means, why ingredient lists are not proof, and which evidence EU rules expect before you put it on a label.

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January 27, 2025
Labelling & Claims

Ophthalmologically Tested: Claim Requirements Explained

Ophthalmologically tested explained: what the claim means, which evidence EU rules expect, how eye safety is assessed, and mistakes that get labels challenged.

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January 22, 2025
Testing by Product Type

Baby Cosmetics Safety Testing: What the File Must Show

Baby cosmetics safety testing explained: why babies need extra care, which assessments and tests the EU file needs, and claims to handle with caution.

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January 17, 2025
Ingredients & Formulation

Nanomaterials Cosmetics Regulation: Rules and Notification

Nanomaterials cosmetics regulation in the EU: definition, notification six months before launch, the (nano) label word and what the safety report must show.

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January 12, 2025
Ingredients & Formulation

CMR Substances in Cosmetics Explained: What Is Banned

CMR substances cosmetics rules explained: what carcinogenic, mutagenic and reproductive toxic mean, Article 15 bans, exceptions and how to check formulas.

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January 7, 2025
Ingredients & Formulation

Margin of Safety (MoS) in Cosmetics: How It Is Calculated

Margin of safety cosmetics explained: NOAEL divided by systemic exposure, the usual minimum of 100, a worked example and how to prepare data for your CPSR.

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January 2, 2025
Ingredients & Formulation

Water Activity and pH: Formulating for Microbial Safety

Water activity cosmetics guide: what aw and pH mean, which microbes grow, how preservatives depend on pH and why a challenge test is still needed.

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Edit a previous CPSR Safety Report or start a new one?

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Your CPSR Safety Report and everything you filled in are now in your cart. Go to checkout to complete the order, or carry on adding tests โ€” your answers stay with this item.

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Order CPSR Report
Draft restored
1
Company
2
Product
3
Packaging
4
Formula
5
Tests
6
Artwork
7
Review

Complete the product form. Our safety assessors will confirm your order shortly.

I. Person / company ordering the safety assessment
II. Product information
III. Use conditions and packaging
IV. Product formula
#INCI nameCAS numberNano% in product
May contain
Total0/ 100%
V. Specifications and tests of the finished product

A challenge test is required for every cosmetic product except microbiologically low-risk ones, which are:

  • Products that do not contain water, or have low water activity
  • Products with a pH below 3 or above 10
  • Products containing more than 20% alcohol
  • Products containing raw materials that create a hostile environment (strong oxidising agents, polar organic solvents, oxidising dyes, aluminium chlorohydrate and related salts, propellant gases and so on)
  • Products filled into containers at more than 65 ยฐC
  • Products packaged in pressurised containers, pump dispensers or single-dose units
When is a challenge test not required?

A challenge test is required for every cosmetic product except microbiologically low-risk ones, which are:

  • Products that do not contain water, or have low water activity
  • Products with a pH below 3 or above 10
  • Products containing more than 20% alcohol
  • Products containing raw materials that create a hostile environment (strong oxidising agents, polar organic solvents, oxidising dyes, aluminium chlorohydrate and related salts, propellant gases and so on)
  • Products filled into containers at more than 65 ยฐC
  • Products packaged in pressurised containers, pump dispensers or single-dose units
VI. Product packaging and artworkOptional — we check the label against the finished CPSR, so the artwork for the outer packaging and the primary container helps. You can also send it to us later.
VII. Review your order
Price—

Edit a previous Safety Data Sheet or start a new one?

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Your Safety Data Sheet and everything you filled in are now in your cart. Go to checkout to complete the order, or carry on adding tests โ€” your answers stay with this item.

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Order Safety Data Sheet
Draft restored
1
Client
2
Formula
3
Languages
4
Details
5
Review

Fill in the form below. We'll prepare your REACH-compliant SDS with a fast turnaround.

I. Information about the client
The client
Holder of the SDS
II. Information about the product formula
#INCI nameCAS number% in product
Total0/ 100%

Have a long ingredient list? Start from our spreadsheet.

Download the template, fill it in Excel, Numbers, LibreOffice or Google Sheets, then upload it here โ€” every field lands in the right place. Filling the form by hand works just as well.

Download template (.xlsx) or .csv
III. Regulatory area and language versionsAn SDS must be supplied in the official language of every market where the product is placed. Pick each market you distribute to — we issue one language version per selection.
0 selected
IV. Additional information about the productEverything in this step is optional, but the more you give us the faster we can finalise the SDS.
V. Review your order
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