Cosmetic Stability Testing for Shelf Life Claims
Cosmetic brands declare shelf life on the label, in the safety dossier, and on marketplace listings. A 12-month or 24-month claim without backing stability data fails an EU 1223/2009 CPSR review, blocks US MoCRA safety substantiation, and triggers ASCI advertising challenge in India. Auriga Research provides NABL-accredited cosmetic stability testing per the correct primary standard — ISO 11369 (Guidelines on Stability Testing of Cosmetic Products) — with ICH Q1B retained specifically for photostability where light exposure is relevant.
Our stability programme covers accelerated stability (40 °C / 75 % RH for 3 to 6 months, predicting 2-year shelf life), real-time long-term stability (25 °C / 60 % RH for 12 to 24 months, directly confirming the declared claim), intermediate stability (30 °C / 75 % RH), photostability per ICH Q1B, packaging compatibility, thermal cycling and freeze-thaw, and microbial stability across time points per ISO 11930. Specialised chamber conditions cover 50 °C, 57 °C, and 60 °C elevated stress; 2 to 8 °C refrigerated; and minus 20 °C, minus 40 °C, and minus 80 °C frozen and ultra-low ranges.
Backed by stability chambers at Delhi and Manesar and the Arbro Group's unbroken NABL ISO/IEC 17025:2017 accreditation since 2003, reports are accepted by CDSCO for cosmetic product registration, by EU importers for CPSR (Cosmetic Product Safety Report) submissions under EU Regulation 1223/2009 Annex I, by US MoCRA safety substantiation files, by BIS for ISI and CRS mark applications, and by Indian e-commerce marketplaces for listing approvals.
Six Stability Study Types
Each card shows the study type, the regulatory standard, the chamber conditions, and the typical timeframe. ISO 11369 is the primary cosmetics stability standard; ICH Q1B is retained for photostability only.
Real-Time Stability (ISO 11369)
Long-term stability at 25 °C / 60 % RH for 12 to 24 months. Directly confirms the declared shelf-life claim. Required by EU 1223/2009 Annex I CPSR and US MoCRA safety substantiation files.
Accelerated Stability (ISO 11369)
Accelerated stress at 40 °C / 75 % RH for 3 to 6 months. Predicts a 2-year shelf life by accelerated kinetics. Standard accelerated study for cosmetics under ISO 11369.
Photostability (ICH Q1B)
Photostability under defined light exposure per ICH Q1B (the one ICH guideline correctly applicable to cosmetics). Evaluates colour and fragrance stability for products with photo-sensitive ingredients or transparent packaging.
Packaging Compatibility (ISO 11369)
Formula-container interaction over the storage period. Tracks leaching, sorption, weight loss, and aesthetic packaging changes. Critical for refillable, dropper, airless, and aluminium-tube formats.
Thermal Cycling + Freeze-Thaw (ISO 11369)
Freeze-thaw cycling and thermal-stress evaluation. Simulates transport conditions and seasonal storage extremes. Critical for emulsion stability and supplier-chain robustness in tropical export markets.
Microbial Stability (ISO 11369 + ISO 11930)
Preservative efficacy across the stability time points. Confirms the preservative system holds across shelf life. Cross-link to PET if standalone preservative efficacy testing is also required.
Confirmed Stability Chamber Conditions
Auriga stability chambers at Delhi and Manesar cover the complete cosmetic stability matrix — accelerated, real-time, intermediate, elevated-stress, refrigerated, frozen and ultra-low, plus freeze-thaw cycling for transport simulation.
Accelerated
40 °C / 75 % RH
Long-term
25 °C / 60 % RH
Intermediate
30 °C / 75 % RH
Elevated Stress
50 / 57 / 60 °C
Refrigerated
2 to 8 °C
Frozen
-20 °C
Ultra-Low
-40 °C / -80 °C
Freeze-Thaw
Cycling
How It Works
Get a Quote
Share your product type, declared shelf life, packaging format, and target market (India, EU CPSR, US MoCRA, GCC). Your dedicated SPOC confirms the stability protocol per ISO 11369, the chamber conditions, the time-point schedule, and the exact sample quantity required before you dispatch.
Send Your Samples
Dispatch product samples in their final commercial packaging with a completed Test Request Form to the nearest Auriga lab (Delhi or Manesar). Each sample is individually bar coded and registered in YLIMS, Auriga's in-house Laboratory Information Management System, upon receipt. Time-point zero (T0) baseline testing begins within 24 hours.
Stability Pull and QA Review
Samples are placed in the appropriate chamber. At each pre-defined time point (T0, 1, 2, 3, 6 months for accelerated; quarterly for real-time), aliquots are pulled and tested for physical, chemical, and microbiological parameters. All results pass through formal internal QA review and sign-off before each interim report is generated.
Receive Your NABL Report
Interim reports are delivered at each time point; the final report is delivered after the last pull. Reports are formatted for EU 1223/2009 Annex I CPSR submission, US MoCRA safety substantiation, CDSCO Form 39 import, and BIS / ISI / CRS applications. You can track sample status and interim time-point results in real time through YLIMS.
Study Timelines
| Study Type | Standard Duration | Notes |
|---|---|---|
| Accelerated stability per ISO 11369 (40 °C / 75 % RH) | 3 to 6 months | Interim reports at 1, 2, 3, 6 months |
| Real-time long-term stability per ISO 11369 (25 °C / 60 % RH) | 12 to 24 months | Quarterly interim reports |
| Intermediate stability (30 °C / 75 % RH) | 6 to 12 months | For tropical climate zone substantiation |
| Photostability per ICH Q1B | 4 to 6 weeks | For photo-sensitive ingredients or transparent packaging |
| Freeze-thaw cycling and thermal stress | 4 to 6 weeks | Emulsion and transport-condition robustness |
| Packaging compatibility (over real-time window) | In parallel with long-term | Container-closure interaction tracking |
| Preliminary screening study | 4 to 8 weeks | For formulation triage before full programme |
Who Needs Cosmetic Stability Testing
- D2C skincare and personal care brand founders before product launch — stability data backs the declared shelf-life claim on label and marketplace listings.
- Private label manufacturers preparing safety dossiers for brand clients — stability is a deliverable in the formulation handover package.
- CDMO clients requiring stability data as part of the formulation-development handover and scale-up programme.
- Cosmetics exporters to EU markets needing shelf-life substantiation for the Cosmetic Product Safety Report (CPSR) under EU Regulation 1223/2009 Annex I.
- Cosmetics exporters to the US needing safety substantiation under MoCRA 2022 — stability data forms part of the safety file.
- Brands launching shelf-life claims (12 months, 24 months, 36 months) who need real-time stability data to back the label rather than accelerated extrapolation alone.
- Brands reformulating preservation, fragrance, or active systems and needing fresh stability data on the new formula.
- Brands launching for tropical climate-zone markets (India, GCC, ASEAN, Africa) where intermediate 30 °C / 75 % RH stability is the correct climate-zone reference.
Why Auriga for Cosmetic Stability
Stability Chambers at Delhi and Manesar
Full cosmetic stability matrix in scope: accelerated 40 °C / 75 % RH, long-term 25 °C / 60 % RH, intermediate 30 °C / 75 % RH, elevated 50 / 57 / 60 °C, refrigerated 2 to 8 °C, frozen and ultra-low at minus 20 °C / minus 40 °C / minus 80 °C, plus freeze-thaw cycling.
ISO 11369 + EU 1223/2009 CPSR
Correct primary cosmetics stability standard (ISO 11369), not the pharma-misapplication of ICH Q1A. Reports formatted for EU Cosmetic Product Safety Report (CPSR) submission under EU Regulation 1223/2009 Annex I.
ICH Q1B Photostability Retained
ICH Q1B is the one ICH guideline correctly applicable to cosmetics for photostability assessment. Defined light exposure protocol for photo-sensitive ingredients and transparent packaging.
Integrated with Manesar CRO Claim Substantiation
Same Arbro Group operates the Manesar Clinical Research Division. Stability data flows seamlessly into in-vivo claim substantiation (Corneometer, Mexameter, Cutometer, ISO 24444 SPF) without vendor change or sample re-shipping.
US MoCRA Shelf-Life Substantiation
ISO 11369 stability reports are accepted as part of the US MoCRA 2022 safety substantiation file alongside other safety evidence in the MoCRA filing package.
NABL Accepted by CDSCO, EU, US, BIS
NABL ISO/IEC 17025:2017 reports accepted by CDSCO Form 39 import, EU CPNP / CPSR, US MoCRA filings, BIS for ISI and CRS mark applications, and Indian marketplaces. Unbroken Arbro Group accreditation since 2003.