Skincare Expiry Dates: When to Throw Out Your Products (Indian Climate Guide)
Most people use skincare products well past their expiry without realising it. In India, where heat and humidity accelerate product degradation, using expired skincare can range from ineffective to genuinely harmful. Here’s what you need to know about skincare shelf life and when to throw products out.
The PAO Symbol: What It Means
Look for a small open jar icon on your product with a number and “M” — this is the Period After Opening (PAO) symbol. It tells you how many months the product is safe to use after you first open it. A “12M” means 12 months after opening, regardless of the printed expiry date.
In India’s climate, actual product life is often shorter than the PAO suggests because heat and humidity degrade formulations faster. A 12M product stored in a hot bathroom may effectively last only 8–9 months.
Shelf Life by Product Type
Serums with Vitamin C: 3–6 months after opening. Vitamin C oxidises quickly — when your serum turns orange or brown, it’s oxidised and no longer effective. Discard immediately.
Niacinamide serums: 12 months after opening. Niacinamide is highly stable — one of the reasons it’s such a practical active for Indian conditions.
Sunscreen: 12 months after opening, or the printed expiry — whichever comes first. Expired sunscreen’s UV filters degrade and provide significantly less than stated SPF protection. This is a safety issue, not just efficacy.
Moisturisers: 12–18 months. If it smells off, changes colour, or the texture separates, discard it.
Cleansers: 12 months. Most stable category — but if it changes smell or texture, it’s gone off.
Storage Tips for Indian Climate
Don’t store skincare in the bathroom — heat and steam from showers degrade products rapidly. Store in a cool, dry place away from direct sunlight. For Vitamin C serums, consider refrigeration to extend life. Write the opening date on products with a marker so you always know when to discard.
Signs a Product Has Gone Bad
- Change in smell (rancid, sour, or unusual)
- Change in colour (Vitamin C turning orange/brown)
- Change in texture (separation, graininess, watery)
- Skin reaction you didn’t have before
- Reduced performance despite consistent use
Glaamorr’s products use stabilised, robust formulations designed to maintain efficacy in Indian climate conditions throughout their stated shelf life.
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