GLO Science sells at-home teeth whitening kits featuring a light-activated system positioned as an alternative to both drugstore whiteners and professional dental treatments. This page aggregates verified shopper reviews to help you assess whether GLO Science delivers the whitening results and product reliability the brand promises.
GLO Science Reviews
2.3
3 reviews
What Shoppers Say About GLO Science
Created with AI, based on recent reviews
GLO Science receives sharply divided feedback, with shoppers either praising dramatic whitening results or expressing frustration with product reliability and effectiveness. One reviewer reported that multiple whitening kits failed after minimal use, with the first unit stopping after a couple of uses and a replacement unit only charging for one session before becoming unresponsive. Another shopper questioned whether the light feature provides any actual benefit, noting zero noticeable whitening results despite the premium price, along with increased tooth sensitivity. In contrast, one five-star reviewer reported transformative results after the first session and valued the at-home convenience as a middle ground between drugstore and professional dental options.
The core divide centers on whether the product delivers on its whitening promise and whether the kit remains functional after purchase. Complaints about device malfunction and lack of visible results directly conflict with testimony of dramatic improvements, making GLO Science a high-risk purchase for potential customers. The premium pricing appears to amplify dissatisfaction when results do not materialize or when equipment fails early.
Customer Reviews (3)
Sorted by: Most recentSarah M.May 16, 2025
Got myself two of their whitening kits and ran into some major issues. After a couple uses, the first one just stopped functioning. Since you can't buy replacement pieces separately, I had to shell out for a complete new kit. Unfortunately, the second one was just as problematic - it would only charge for one session and then nothing. Really disappointed with this purchase and would tell others to look elsewhere.
Jennifer K.Sep 20, 2020
This is just another gimmick in the teeth whitening industry, honestly. The light feature is probably doing nothing at all for the actual whitening. For the price tag they're asking, I got zero noticeable changes and to top it off, my teeth became sensitive and painful. Total waste of money in my opinion.
Michelle T.Aug 8, 2020
This whitening system completely transformed my smile! I wasn't willing to sit around for weeks waiting for drugstore products to work, and I definitely wasn't paying dentist prices either. The at-home GLO system seemed like the answer. Sure, it costs a bit more upfront, but seeing dramatic changes after my very first session made me realize it's totally worth the investment. Everyone around me has commented on how much whiter my teeth look now, which honestly feels amazing. This product truly delivers on its promises and I can't recommend it highly enough!
GLO Science Review FAQ
How is GLO Science's rating calculated?
The 2.3 rating is computed from 3 verified customer reviews. The rating distribution shows that two-thirds of reviews gave one star, while one-third gave five stars, with no three or four-star ratings in the current dataset.
What do satisfied customers praise about GLO Science?
The five-star reviewer reported dramatic whitening results after the first session and valued the product as a cost-effective middle ground between drugstore whiteners (which work slowly) and professional dental whitening (which is expensive).
What are the main complaints about GLO Science?
One-star reviewers reported two major issues: device malfunction (units stopped functioning after minimal use or would only charge for one session before failing) and lack of effectiveness (no noticeable whitening despite the high price, plus increased tooth sensitivity). One reviewer also questioned whether the light feature provides any actual whitening benefit.
Can you buy replacement parts for GLO Science kits?
According to one reviewer, replacement pieces are not available for individual purchase, meaning a malfunctioning kit requires buying an entire new system.
Do shoppers recommend GLO Science?
Recommendations are split: one customer strongly endorses the product based on visible results, while two customers advise against purchase due to equipment failures and ineffectiveness relative to the premium price. Prospective buyers should carefully weigh the dramatic success story against the reliability and results concerns raised by others.