How long does unopened vitamin c serum last?

How do I know if my vitamin C serum is expired?

“If it is completely yellow, brown, orange or any shade other than what it looked like when you first bought it, it most likely has gone bad,” says Dr. Houshmand. If you’re still unsure, take note of any scent or texture changes, which may also be a sign that it’s time for a fresh seru.

How do you store unopened vitamin C serum?

Store your vitamin C serum in the fridge.

Vitamin C has an extremely short shelf life because it oxidizes, or breaks down when it’s exposed to oxygen. Your fridge is a great place to store vitamin C serum, because the refrigeration will help delay the oxidation process longer than storing it at room temperature.

How long do unopened serums last?

Specific products can vary, but in general, unopened skin care can last from one to three years. After opened, you should use a product as directed promptly, within one year. Always throw away a product if it seems discolored, develops a strange odor, or the consistency changes (if it becomes lumpy, runny, etc).

What will happen if I use expired vitamin C serum?

It is unlikely that an oxidised or expired vitamin C serum will cause harm to your skin, so don’t stress if you’re reading this and only just realising your serum may not be in its best shape.

Can vitamin C serum expire?

Although your Vitamin C serum will lose its efficacy once oxidized, the product does not become harmful to the skin until it’s expiration date, approximately one year after manufacturing. For best results, we recommend using your Vitamin C serum within 3 to 6 month of purchase, when it is fresh and most effective.

How do you know if a serum is expired?

Alternatively, many brands (including ourselves) also print the expiration date on the bottom of the product as well. Keep in mind that the date is usually written in a YYYY/MM/DD format.

Does expired vitamin C still work?

Vitamins don’t “expire” in the traditional sense. Instead of becoming unsafe to ingest, they simply become less potent. That’s because most of the ingredients in vitamins and dietary supplements break down gradually. This means that they become less effective over time.

How long is vitamin C serum good for after expiration date?

When Vitamin C is expired, the smell and texture can often change, as the oil and cream within the formula separate. “The date of expiration of Vitamin C skincare product depends on the type, but it usually lasts between 3-6 months” says Dr.

What does expired vitamin C look like?

A classic telltale sign of expired or oxidised Vitamin C is a change in colour. If you’ve spied that your once clear or light yellow serum is now looking a little deeper, or has changed shades entirely, you can take this as a pretty clear indication that your product has oxidised.

Can expired vitamin C serum cause acne?

For some products, like Vitamin C serums, age and oxidation lowers the quality of the item and makes it less potent. But for others, a product past the expiration date could be rancid and cause acne and irritation.

What happens when you use expired vitamin C?

Taking an expired vitamin or supplement is highly unlikely to cause you harm. Unlike food, vitamins don’t go “bad,” nor do they become toxic or poisonous. At this time, there haven’t been any documented cases of illness or death resulting from expired vitamins.

When should I throw away my vitamin C serum?

A pure and potent vitamin C serum will be clear. The moment you start to notice your serum tinging towards a translucent brown or orange shade, it’s time to toss. This means the ascorbic acid (vitamin C) has oxidized, and no longer holds its antioxidant powers.

How do I know if my vitamin C serum is still good?

Expiration time

Many serums are yellow, but if your product takes on a brown or dark orange hue, it’s time to toss because it’s gone bad. If your serum starts out clear and turns yellow, that’s also a sign it’s oxidizing and will be less effective.

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