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Hair Product Expiry Tracker

Name: How to use the Hair Product Expiry Tracker
Uploaded: 2026-11-07
Duration: 56 s
Description: A short walkthrough: log when you opened each hair product, read the open-jar symbol and get a replace-by date with reminders.

Do hair products expire? Once opened, yes. Log when you opened each one and get a replace-by date from its open-jar symbol — your list stays on this device.

Your data stays on this device. It's saved in this browser only — nothing is uploaded, and there's no account. Clearing your browser data deletes it, so export a backup now and then.

Keep an inventory of what you ownTrack how full each product is and build a restock list How long will this bottle last?Estimate washes per bottle and your run-out date

How to use the Hair Product Expiry Tracker

Add a product you’ve opened

Type the product name, pick its type and enter the date you opened it.
Choose the open-jar symbol

Find the little open jar with a number and “M” on the pack, such as 12M, and pick it in “Open-jar symbol (PAO)”. Not sure? Leave “No symbol” and we use a typical 12 months.
Add a printed expiry date if there is one

Open “Printed expiry date and notes”. When the pack has its own date, the tracker uses whichever date comes first.
Check your list

Each product shows its replace-by date and a status: Fresh, Use soon (30 days or less) or Replace now, sorted by what expires first.
Save reminders or a PDF

Download calendar reminders two weeks before each date or a printable list. Your data stays on this device — export a backup to keep a copy.

How to use the Hair Product Expiry Tracker (56 s)

How it works

Hair products don’t last forever once you open them. This hair product expiry tracker turns the small print on the pack into a date you can act on, and keeps a running list so nothing sits on the shelf for years.

1. The open-jar symbol

Most hair products show a tiny open jar with a number and the letter M — 6M, 12M, 24M. That is the period after opening: how many months the maker expects the product to stay good once the seal is broken. In the EU, products that keep more than 30 months unopened must show it, which is why you see it on so many U.S. bottles too. In the United States, cosmetics generally aren’t required to carry an expiration date at all.

2. How the replace-by date is worked out

We add the symbol’s months to the day you opened the product, using real calendar months (a product opened on January 31 with a 1-month symbol is due at the end of February). If the pack also has a printed expiry date, we use whichever date comes first.

3. When there’s no symbol

If you can’t find a symbol, the tracker uses 12 months and labels it as a typical value. We use one cautious middle number rather than inventing a different shelf life for every category — the product type changes the warning signs we show you, not the date.

4. Status and reminders

Fresh — more than 30 days to go.
Use soon — 30 days or less. Finish it before opening a new one.
Replace now — past the date.

The calendar file adds a reminder 14 days before each replace-by date, so you can use the product up or put a replacement on your shopping list.

Limits

A date is a guide, not a guarantee. Heat, sunlight, steamy bathrooms, shower water getting into the bottle and fingers dipping into jars can all spoil a product early — and a product that smells, separates or changes color should go, whatever the date says. Your list is saved in this browser only; nothing is uploaded, so export a backup if you switch phones.

What to watch for, by product type

Product type	Signs it has gone off	Storage tip	If no symbol
Shampoo / co-wash	Thin, watery texture or a sour smell; foam that suddenly behaves differently.	Close the cap after each wash so shower water doesn’t get in.	12 months (typical)
Conditioner	Separation into watery and thick layers, a sour or "off" smell, mold spots near the cap.	Keep the lid shut and avoid topping it up with water.	12 months (typical)
Leave-in / cream	Water-rich creams spoil fastest: watch for separation, graininess, discoloration or a changed scent.	Pumps and squeeze bottles stay cleaner than open jars.	12 months (typical)
Gel / styler	Cloudiness, a slimy or stringy texture, or loss of hold; flaxseed/DIY gels spoil within days.	Keep homemade flaxseed or aloe gels in the fridge and use them within days.	12 months (typical)
Oil / serum	A rancid smell like old crayons or stale nuts means the oil has oxidized — skip it.	Store away from heat and sunlight; dark bottles help slow oxidation.	12 months (typical)
Butter / pomade	A rancid smell, gritty texture after it was smooth, or any fuzzy spots from fingers dipping in.	Scoop with a clean spoon instead of fingers; keep it cool so it doesn’t melt and re-set grainy.	12 months (typical)
Mask / deep conditioner	Jars get contaminated by fingers; look for spots, separation and odor changes.	Use a clean spatula and store the jar out of the steamy shower.	12 months (typical)
Hair color	Mix only what you use right away — mixed color can never be saved. Opened tubes that dry out or change color should go.	Never save mixed color. Keep tubes and developer sealed, cool and upright.	12 months (typical)
Other	Any change in smell, color or texture compared with when you opened it.	Cool, dry and closed is the rule for almost everything.	12 months (typical)

Always go by the symbol or printed date on your own product when it has one.

Frequently asked questions

Do hair products expire?

Yes. Once a product is opened, air, water and fingers bring in microbes, and oils slowly oxidize. Preservatives buy time but not forever. Most packs show how long they last after opening with an open-jar symbol, such as 12M for 12 months.

What does the 12M symbol on hair products mean?

It is the period-after-opening (PAO) symbol: a small open jar with a number and the letter M. 12M means the maker expects the product to stay good for 12 months after you first open it, if it is stored properly.

Why doesn’t my shampoo have an expiration date?

In the United States, cosmetics are not generally required to carry an expiration date, so many bottles have none. Products sold in the EU must show the open-jar symbol when they keep more than 30 months unopened, which is why you often see it on U.S. shelves too.

Can I use expired shampoo or conditioner?

An old product past its date may simply work less well, but it can also grow microbes or separate. If it smells, looks or feels different, throw it out. If it seems unchanged and is only a little past the date, it is your call — but don’t use anything with mold or that irritates your scalp.

Do hair oils go bad?

Yes. Plant oils oxidize and turn rancid over time — they start to smell like old crayons or stale nuts. Rancid oil won’t help your hair. Keep oils capped, away from heat and sunlight, and replace them when the smell changes.

How long do hair products last unopened?

Usually much longer than after opening, if they are stored somewhere cool and dry. Under EU rules a product only needs a “best before” date when it keeps 30 months or less unopened, so a pack showing just the open-jar symbol is expected to last at least that long sealed. Heat and sunlight shorten that.

Is it safe to use old hair color?

Old color and developer can lose strength, so results become unpredictable. Never keep color after mixing it. Follow the maker’s instructions, including the allergy (patch) test before every use, and don’t use tubes that have dried out or changed color.

Sources

Last data update: November 7, 2026

U.S. Food and Drug Administration. Shelf Life and Expiration Dating of Cosmetics. U.S. law does not require cosmetics to carry an expiration date; how a product is stored and used affects how long it stays safe.
Regulation (EC) No 1223/2009 of the European Parliament and of the Council on cosmetic products, Article 19 and Annex VII. In the EU, products that keep more than 30 months unopened show a period-after-opening (open-jar) symbol; products with a shorter shelf life must show a minimum durability date.

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