Authentic can still be unsuitable
A genuine formula may still irritate, conflict with your routine or be wrong for your concern.
Skincare safety
How to Check Whether a Skincare Product Is Authentic
No single barcode, batch code, seal or packaging detail can prove authenticity. Start with the seller and supply chain, then inspect the label, batch, expiry, packaging and condition together.
OuterDerm 3-Step Check
Check the standard before the brand.
- 1Is it genuine and in good condition?
Start with seller provenance, then inspect label, manufacturer details, batch or lot, expiry or shelf-life information, tamper evidence where expected, packaging condition, container condition and unexpected changes in colour, smell, consistency or separation.
- 2Is it suitable?
Check the category requirements, skin type, intended concern, irritation risk, warnings and whether the product is being used in an appropriate way.
- 3Is it worth buying?
Judge whether it performs the basic job, is practical enough to use consistently, has reasonable size and price for the function, and has limitations you can accept.
Authentic, suitable and usable are different questions
Genuine can still be unacceptable
An authentic product can be expired, heat-damaged, leaking or contaminated.
Fake can look convincing
Packaging, seals, barcodes and spelling can be copied. Treat them as evidence, not proof.
Barcode is not exact-unit proof
A barcode may identify the product type without proving the exact unit is genuine.
Before buying
- Check seller identity, reputation and official or authorised source where verifiable.
- Ask for an invoice or purchase record where applicable.
- Treat implausibly low prices as a warning signal, not a bargain by default.
- Compare current official packaging references without assuming every update means fake.
- Check manufacturer or distributor information, full ingredient and quantity label, batch or lot details and expiry or period-after-opening details.
- Review return policy, storage and delivery conditions where relevant.
When the product arrives
- Photograph the unopened package before use.
- Compare the exact item ordered with what arrived.
- Inspect leakage, broken caps, damaged pumps and unexpected tampering.
- Check batch and expiry before opening.
- Inspect print quality without treating print quality as conclusive proof.
- Compare smell, colour and texture only against reliable prior knowledge.
- Do not continue using a product that appears contaminated or causes an unexpected serious reaction.
What does not prove authenticity by itself?
Barcode
May identify a product type; it does not authenticate the exact unit.
QR code
Can be copied, redirected or used for marketing rather than authentication.
Batch-code website
A valid-looking result is one signal, not proof by itself.
Seal
Useful only when the brand normally uses that seal and the rest of the evidence fits.
Spelling
Correct spelling is expected, but counterfeiters can copy text.
Packaging image
Brands update packaging and counterfeiters copy images.
High price
Expensive products can still be fake, expired or poorly stored.
Marketplace verified badge
A marketplace badge is not exact-unit authentication.
Customer reviews
Reviews do not prove the product you receive is genuine or in good condition.
In short: A barcode that scans. A QR code. A batch code appearing valid. Correct spelling. A seal. Packaging that looks similar to an online image. None of these should be treated as a guarantee on its own.
OuterDerm exact-unit verification process
- Purchase through the selected source.
- Retain the purchase record.
- Inspect the exact unit when received.
- Check the batch, expiry and packaging condition.
- Reject visibly compromised stock.
- Share batch and expiry photographs with the buyer on request.
- Dispatch only after the inspection.
OuterDerm does not claim laboratory verification, official distributor status, guaranteed authenticity from packaging alone, FDA approval, or universal safety for every person.
Category buying guides
How to Choose a Sunscreen That Is Worth TrustingChoose a broad-spectrum sunscreen with SPF 30 or higher, an identifiable manufacturer, complete labelling and a texture you can apply consistently. Water resistance matters especially when sweating, swimming or remaining outdoors.How to Choose a Face Wash Without Stripping Your SkinChoose a gentle, non-abrasive cleanser that removes ordinary dirt, sweat and sunscreen without leaving the skin persistently burning, tight or irritated.How to Choose an Azelaic Acid Product SafelyChoose an azelaic acid product that clearly states its concentration, provides complete ingredients and instructions, comes from an identifiable source and is appropriate for your intended concern and tolerance.
Sources and last reviewed
Last reviewed: 2026-08-24.
- FDA - Key terms for cosmetics regulationUsed for label, misleading-claim and product-condition principles.
- UK Intellectual Property Office - Topical issues for business and consumersUsed for counterfeit and sub-standard product risk framing.