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Stability Testing Services

Preliminary (Screen) Stability Test

Standard Accelerated Stability / Compatibility Test

Helps screen formulations during product development.

1 week stress test to determine whether the formulation is robust enough for a full Stability Trial.

Sample Quantity Required: 100ml.

Samples stored in:

  • 4°C Control
  • Accelerated Condition (Usually 45°C can be adjusted) – Thermal Stability
  • Freeze Thaw Cycling (-10°C to 40°C over 24 hours) – Temperature variation
  • Intense Instrumental Irradiance Control – Photo Stability

A predictive study used to estimate the expiry date

Sample Quantity Required: 500ml / 5 filled packs (minimum)


Samples stored in our standard 5 conditions:

  • 4°C, 20°C, 40°C, Window Light & Freeze Thaw Cycling
  • 12 week duration with tests conducted at regular intervals

Test services vary upon product type & Client request
Interim updates & images provided throughout the trial, with full report on completion

Real Time Stability / Compatibility Test

Bespoke Stability / Compatibility Test

As an add-on to the Accelerated Test, additional samples are stored for intended shelf life (up to 30 months for PAO) to determine the actual expiry date

Sample Quantity Required: 200ml / 2 filled packs (minimum)

Samples stored in 2 conditions:

4°C & 20°C
Test duration dependant on the Clients intended shelf life:
6, 12, 24 & 30 months

We can tailor a protocol to your requirements, or implement your own protocol based on the relevant tests required to accelerate and predict the effects of normal conditions of storage and use.

Review our storage conditions & testing services to create a protocol that is fitting for your products

We offer a flexible approach that is cost effective, providing a personal and professional service