Subtitle: Shelf Life, Ingredient Integrity, and Real-World Use Conditions
What Is Stability Testing in Skincare and Supplements? How It Works and Why It Matters
Stability testing ensures your product is safe, effective, and compliant. Learn how it works for skincare and supplements and why it matters to your brand.
Have you ever wondered how long your skincare or supplements actually last after production? That’s where stability testing comes in. It’s a crucial part of quality assurance that ensures your product stays safe, effective, and true to label — even months or years after it’s made.
At SKD Pharmaceuticals, stability testing is a core part of our private label process, giving your brand confidence and credibility.
Stability testing is a series of tests that simulate real-world storage conditions (heat, humidity, light) over time. It tells us how long a product maintains:
| Type | Purpose |
|---|---|
| Real-Time Testing | Stores product under normal conditions for up to 12–24 months |
| Accelerated Testing | Simulates ageing using elevated temperature/humidity to predict shelf life |
| Freeze-Thaw Testing | Tests resilience during shipping or temperature swings |
| Light Exposure Testing | Evaluates colour and active degradation under UV/visible light |
Based on testing results, your product will carry either:
Skincare may use PAO symbols, while supplements typically use a fixed expiry date.
Our QA process includes:
A product is only as good as it is stable. Whether you’re launching a hydrating serum or a supplement capsule, stability testing ensures your product won’t let your customers — or your brand — down.
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