What Is a Prysm Score? The Complete Guide to Understanding Your Antioxidant Reading
If you have seen someone scanning a fingertip at a wellness event, you have probably wondered what the number actually means. Here is the plain version — what a Prysm Score is, how it is taken, what moves it, and what we are deliberately not going to tell you.
What is a Prysm Score?
A Prysm Score is a measurement of the carotenoid level in your skin, produced by the Prysm iO device using Nu Skin's Patent-Pending Spectral Rai Technology.
Nu Skin's own framing: Prysm iO "measures carotenoid levels in your skin—an important biomarker of your antioxidant health", and "In 15 seconds, Prysm iO shows you if key nutrients in your diet and supplements are getting absorbed."
A higher score means more carotenoids in your skin. That is what the number is, and it is worth being precise about it rather than inflating it into something larger.
How the scan works
Placement: Nu Skin's instruction is to "place the pad of your index finger over the lens". No preparation, no discomfort.
Duration: 15 seconds. Nu Skin prints "700,000+ Measurements per scan" and describes an "AI-powered algorithm".
The result: a single number, in the free Vera app on your phone.
We used to describe the optics here — wavelengths emitted, spectral responses measured. Nu Skin publishes no mechanism for Spectral Rai Technology, so we have stopped explaining one on their behalf.
The scan is non-invasive. No needles, no blood draw, no lab.
What the score ranges mean
Nu Skin publishes the score bands as a chart image rather than as text, so we are not going to print numeric thresholds and imply they came from them. What we can say is how the bands work in practice:
Lower
Antioxidant levels below where you would like them. Common contributors are a diet light on colourful fruit and vegetables, inconsistent supplementation, smoking, and sustained stress. A low score is a starting point rather than a verdict.
Middle
Some antioxidant protection, with room to move. This is where most people who have not been paying attention to carotenoids tend to sit.
Higher
Higher carotenoid levels in skin. Usually the result of eating well and supplementing consistently rather than of anything clever.
What moves your score
Diet. Carotenoids come from colourful plants — carrots, sweet potatoes, spinach, kale, tomatoes, peppers, mangoes, berries. Eat more of them and the score follows.
Supplements. Nu Skin makes two specific claims here. Pharmanex LifePak is "clinically shown to raise Prysm Scores by supporting carotenoid levels from within", and one of their printed benefits for g3 is "Improves your Prysm Score". Those are the two products they tie to the reading.
Consistency. Carotenoids accumulate in skin over time, so a daily habit moves the number and an occasional one does not.
Smoking. Widely understood to deplete carotenoid levels. We have removed the comparative figure this page used to carry, because we could not source it.
How to raise it
1. Use the products Nu Skin ties to the score. Pharmanex LifePak, which they say is clinically shown to raise Prysm Scores, and Pharmanex g3, which they say improves it.
A note on what we removed: this page used to say that Beauty Focus Collagen+ contributes to your score because it contains lutein. Nu Skin makes no such claim for it, so we no longer make it either.
2. Eat more colourful plants. Five to seven servings a day, weighted towards orange and yellow vegetables, dark leafy greens and red fruit.
3. Scan at consistent intervals. Same time of day, similar conditions. For context on what change can look like, Nu Skin's own twelve-week study reported "43 to 46% increases in skin carotenoid levels" — their participants, not a promise about you.
Why the trend matters more than the number
The single reading is much less useful than the direction of travel. A score that moves is objective feedback that a habit is doing something, which is a far better motivator than hoping. A score that does not move is equally useful — it tells you to change something rather than to keep going.
Getting a score
You need the device. The Prysm iO is available at NuBodyRx, 100% authentic, with free US shipping on orders of $99 or more. Current price is on the product page.
Download the free Vera app, pair the device, and scan whenever you like. Most people settle on once a week.
Learn everything about Prysm iO →
NuBodyRx sells 100% authentic Nu Skin and Pharmanex products and is based in Sarasota, Florida. Every order is backed by NuBodyRx's own 90-day money-back guarantee. Nu Skin's published US refund policy is 30 days from the purchase date; the extra 60 are ours.