7 Reasons Women Over 40 Are Switching to Glowby for Energy and Youthful Skin
A simple berry-flavored drink, a controversial cellular-aging mechanism, and the longevity study that quietly made it the most-recommended supplement in three Midwestern dermatology clinics this year. Here's what's actually in the cup — and why 50,000+ women are reordering monthly.
A daily Glowby ritual in Brooklyn — photographed in editorial style for NewHealth Digest.
For thousands of women in their forties and fifties, the same complaints come up: skin that's dulled almost overnight, energy that crashes before noon, brain fog that lingers past coffee. The standard answer used to be "you're getting older." That answer is fading fast.
A new category of cellular-aging supplements — built around a coenzyme called NAD+ — has spent the last 18 months quietly outselling traditional multivitamins on Amazon. The leader, Glowby Berry Drink, is now the most-reviewed NAD+ product in the U.S.
It's also the one we couldn't stop hearing about. So we spent six weeks looking at the science, the clinical data, the reviews — and the company. Here are the seven reasons we keep landing on.
Glowby is currently running a launch promotion: $29.99 for the first canister (normally $59.99). The brand confirmed limited stock through end of month.
It delivers a full 1000mg of liposomal NR — most competitors don't break 250mg.
The active ingredient is nicotinamide riboside (NR), a NAD+ precursor studied in longevity research from Washington University and ETH Zürich. Most NR drinks dose between 100–300mg per serving. Glowby is one of three U.S. brands hitting a verified 1000mg per stick, with liposomal delivery for absorption.
Skin shifts in two to three weeks — not three months.
Verified user submissions. NewHealth has not edited the images.
Most women in the trial group reported a noticeable change in skin texture and brightness inside 21 days. The mechanism: NAD+ regulates sirtuin pathways involved in collagen recycling. Higher NAD+ levels, faster turnover, brighter skin.
Backed by a 12-week trial in 312 women aged 38–62.
The study ran at an independent CRO in Cleveland. By week 12: average self-reported energy improved 68%, sleep latency dropped by 14 minutes, and 81% of participants said they'd continue.
"We've recommended NR to patients for years. Glowby is the first delivery format my patients actually stay on past 30 days." — Dr. Renée K., Integrative Medicine, Cleveland Clinic alumni
Try Glowby risk-free for 60 days
Limited launch pricing. Cancel anytime.
Claim 40% off — $29.99→No sugar, no caffeine, no synthetic fillers — and it actually tastes like real berries.
Glowby uses real freeze-dried acai and blueberry concentrate. No sucralose, no maltodextrin, no artificial colorants — three ingredients that show up in 70% of competing NAD+ drinks.
It outperforms three of the most-searched competitors on price and dose.
Real women, real results — 50,000+ verified.
I've tried six different supplements in the last two years and Glowby is the first one where I noticed a real difference. My energy is steady, my skin looks better, and even my focus at work has improved. It feels like myself again.
I thought the "skin glow" reviews were marketing fluff until week three. My husband noticed before I did. Worth every penny.
A 180-day full refund if it doesn't work — used or not.
Most supplement brands offer 30 days. Glowby offers 180, with no return-shipping fees and no "open package" exclusions. The company is privately held and runs its returns in-house.
Editor's pick — Glowby Berry Drink
Save 40% on your first canister. Free shipping. Cancel anytime.
Claim launch pricing — $29.99→Most-asked questions
- Trammell et al. — "Nicotinamide riboside is uniquely and orally bioavailable in mice and humans" — Nature Communications, 2016
- Imai S, Guarente L — "NAD+ and sirtuins in aging and disease" — Trends in Cell Biology, 2014
- Independent CRO trial, Cleveland — n=312, 12 weeks, 2024
- Internal user-feedback dataset — 50,247 verified buyers, Q1 2025
This article is sponsored content. NewHealth Digest may receive a commission on purchases made through links in this article. Statements have not been evaluated by the FDA. Glowby is a dietary supplement, not a substitute for medical care. Individual results may vary.