At the shelf
The front is the ad. Sus reads the back, for your skin.
The front of the bottle is an ad
A second opinion, before you buy.
Point your camera at the ingredient list. Sus grades what’s actually in there, for your skin. Not skin in general.
Download on the App Store
Free for iPhone. Your first 3 scans are on us. No sign-up.
On TikTok
When a video sells it, Sus checks what the list actually supports.
In your routine
Every scan is saved. Change your Skin ID and re-grade your shelf.
Asked constantly
The questions the label won’t answer.
How do I check whether a skincare product is right for my skin?
Flip the bottle. What sits high on the list on the back is most of the formula; ask whether it fits your skin, not skin in general. Sus does that in ten seconds: three free scans, no account. How to check, step by step.
Are skincare ingredient checker apps accurate?
Only when they answer the right question. A red or green toxicity score ignores concentration and the rest of the formula. Sus reads the list, not just the barcode. It grades the bottle against your skin and says when the label is not enough to call it. Sus vs Yuka, plainly.
Does the order of ingredients on a skincare label matter?
Yes, it is the most useful thing on the bottle. Heaviest first, until about 1 percent. A hero ingredient listed after the preservative is mostly a story on the front. The full guide.
Do ingredient checkers know how much of an ingredient is in the bottle?
No, and no app can. Labels do not print concentrations. Position on the list is the only honest signal, and Sus says so instead of guessing.
Is PDRN worth it, or is it mostly marketing?
Depends where it sits. On many viral creams it is ninth or lower, after the preservative, which makes it a marketing signal more than a dose. What PDRN actually is.
Is fragrance bad for skin?
Not for everyone. It is the most common cause of reactions, so it weighs more on reactive skin than on skin it has never bothered. Your Skin ID decides. The fragrance guide.
Does non-comedogenic mean a product will not break me out?
No. There is no legal definition and no test a brand has to pass. Sus reads the actual list for known pore-cloggers instead. What the claim means.
How can I tell if a skincare product was quietly reformulated?
The list changes; the bottle rarely does. Save a scan, then scan the new bottle: Sus grades the current list, so a changed formula shows up as a changed grade. How to spot a reformulation.
What does Sus cost, and what do you get for free?
Three scans free, no account. After that it is a subscription; the price is set per country and shown on the App Store before you pay. See it on the App Store.
Is Sus medical advice?
No. A scan is a shopping call, not a diagnosis. Reactions that keep coming back belong with a dermatologist.
Live on the App Store
Sus is out. Your shelf is about to get honest.
Next time the front of the bottle starts sounding convincing, turn it around. Free to download, with 3 free scans before any paywall.
Get Sus for iPhone