Type the batch (lot) code from your Kate Somerville product — skincare, makeup or perfume — and we decode the manufacture date, how old it is, and an expiration estimate.
Ingredients, checked
Every one scored 0–100 on ingredient safety, with the low/moderate/high breakdown behind it. No brand pays for placement.
6 low · 1 moderate · 0 high-risk
Kate Somerville
EradiKate Acne Treatment
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26 low · 7 moderate · 2 high-risk
Kate Somerville
Exfolikate Intensive Exfoliating Treatment
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21 low · 7 moderate · 2 high-risk
Kate Somerville
ExfoliKate® Cleanser Daily Foaming Wash
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15 low · 1 moderate · 0 high-risk
Kate Somerville
Kateceuticals Supercell Rejuvenation Serum
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36 low · 4 moderate · 1 high-risk
Kate Somerville
KateCeuticals Total Repair Cream
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26 low · 2 moderate · 0 high-risk
Kate Somerville
Eradikate Daily Cleanser
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37 low · 2 moderate · 1 high-risk
Kate Somerville
Retinol Firming Eye Cream
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21 low · 2 moderate · 0 high-risk
Kate Somerville
Oil Free Moisturizer
See what's in it →Where to buy
Current stock at Amazon. Affiliate link — we may earn a commission at no cost to you, and it never affects the grades above.
The Kate Somerville batch code is a short, usually embossed stamp of letters and numbers — never the barcode. Here’s what it looks like on typical packaging (the code is the short embossed stamp, not the long barcode):
A genuine Kate Somerville code looks like T2137A or X1307A or T9165A — usually embossed, not the barcode.
The Kate Somerville batch code — also called the lot code, lot number or serial number — is a short 4–8 character stamp of letters and numbers, usually embossed rather than printed in ink, and it is never the barcode. On a bottle or jar look at the base; on a tube look near the crimp/seal at the end; on a boxed perfume or fragrance check a flap or side of the box; on makeup check the underside of the compact or inside the pan.
Kate Somerville codes encode a year digit plus the day of the year.
Real documented examples: code → manufacture date.
Most unopened cosmetics and fragrances keep for about 30–36 months from manufacture. Once opened, follow the PAO (open-jar) symbol — it usually matters more than any printed expiration date.
We've read 84 Kate Somerville batch codes so far, the newest was made July 2026, and the typical Kate Somerville product people check here is about 52 months old.
Can the batch code tell me if my Kate Somerville is authentic? Not on its own. A code that decodes to a sensible date is a good sign, but counterfeiters copy real codes from genuine packs, so a valid code cannot prove a Kate Somerville product is authentic. Buy from Kate Somerville or an authorised retailer, and compare the packaging, print quality and seal with one you know is genuine.
Yes — like all cosmetics and fragrances, Kate Somerville products have a limited shelf life. Unopened they typically last 30–36 months from the manufacture date, and the batch code above tells you how old yours already is. After opening, the PAO (open-jar) symbol — e.g. "12M" — is a better guide than any printed expiration date.
Unopened: general cosmetics guidance. Opened: general guidance by product type. A date or open-jar symbol on your pack always wins.
← Batch code checker for every brand · Full ingredient breakdown in the ingredient checker.
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