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166 Customer Reviews

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HiSmile offers a peroxide-free alternative to at-home whitening products and promises to give you the same quality of results with less risk of sensitivity and enamel erosion. Most users liked their results, but some still experienced tooth pain and damage.


  • No peroxide ingredients (less risk of enamel problems)
  • Active ingredients show clinical evidence for whitening


  • More expensive than other brands
  • Not all users experience results
  • Still led to enamel damage for some customers

HiSmile Review: An In-Depth Look

By Lydia Noyes

Updated on: Jun 22, 2020

HiSmile offers a home teeth whitening kit that it claims will give you a brighter smile without pain or permanent tooth damage. You can purchase a whitening kit and as well as refills to maintain your results over the long term.

Our analysis will help you understand if this product works and if it is the right option for you.

How Does HiSmile Work?

HiSmile teeth whitening kit combines a whitening gel with LED light to purportedly deliver long-term results through treatment sessions that can last as little as ten minutes.

As with most home whitening kits, HiSmile will only work for certain kinds of tooth staining.

“This at-home method is the most effective on teeth stained by coffee, wines, or food,” shares Dr. Mike Golpa, a dentist and CEO of the G4 by Golpa dental implant centers. “It won’t be that useful on teeth yellowing due to aging or naturally yellow dentin.”

To use, you will need first to brush your teeth and attach the whitening mouth tray to the LED light. Twist off the cap of the gel syringe and apply ¼ of the gel pack to the top of the tray and another ¼ to the bottom.

Put the tray on your teeth and turn the light on. The device will automatically turn off after a ten-minute session, and you can then rinse out any excess gel.

The treatment will continue to work on your teeth until you eat or drink again, so the company recommends whitening your teeth right before bed.

For best results, repeat the treatment for at least six nights. Your results should last at least 3-4 weeks, and you can purchase HiSmile Gel Refills to maintain your results over time.

Expect to get two uses per syringe, and plan to treat your teeth approximately once every two weeks.

The whitening effect will last longer between treatments if you avoid dark foods and staining drinks like red wine and coffee. Store the syringes in a cool, dry place between use.

Though this whitening product is recommended for people 12 and over, pregnant and breastfeeding women should speak with their doctor before use.

It’s also suitable for all kinds of natural teeth (even if you have fillings), though having braces can lead to uneven results. Those with veneers and crowns should talk with their dentist first, as these won’t respond to whitening like your natural teeth.

Analysis of Key Ingredients

Unlike many teeth whitening products, HiSmile doesn’t contain hydrogen peroxide and instead relies on the following ingredients:

Phthalimidoperoxycaproic acid (PAP) is an active bleaching agent that oxidizes discolored molecules inside your teeth so that they have a whitening effect. The company claims it is as effective as traditional teeth whitening agents but runs less risk of harming your enamel than hydrogen peroxide.

One 2017 study found that a bleaching agent containing PAP produced significant whitening effects for teeth compared to placebo within 24 hours of a single treatment.

Hydroxyapatite is the primary inorganic material that makes up your bones and tooth enamel. In whitening products, it acts as a restoration treatment for the surface of your teeth that also provides a whitening effect. Evidence shows that it can act as a promising alternative to oxidizing bleach treatments.

Potassium Nitrate is a common desensitizing agent used in dentistry to protect your nerves during drilling procedures. It’s added to whitening products to make them more comfortable to use and reduce tooth sensitivity.

The other component of this teeth whitening system is the LED lighting. According to HiSmile, LEDs accelerate the teeth whitening process by activating the gel and getting it to work faster.

However, the clinical evidence for these results is sparse. One 2012 study compared the whitening results of an in-office dental treatment to LED/gel treatments and found that the home treatment’s effects were insignificant compared to the in-office whitening.

Another study in 2014 confirmed that using a light activator during a whitening treatment had no impact on the process or the overall whitening results.

Analysis of Customer Reviews

More than 150 customers have left reviews for HiSmile on our site, and these average 3.7-stars out of five. Here’s a summary:

Common Compliments:

  • Led to real whitening within a week
  • Easy and comfortable to use
  • Worked better than other brands

Common Complaints:

  • Didn’t whiten all user’s teeth
  • Some received faulty products
  • Damaged some user’s enamel
  • Not as effective as other whitening brands
  • Difficult to get in touch with customer service

Pricing and Return Policy

  • The HiSmile Home Whitening Kit costs $59.99. It includes a mouth tray, LED light, and three gel packs, which is enough for six whitening treatments.

  • Three-pack Gel Refills are available for $23.99.

  • You can also sign up for a Gel Refill subscription. Choose a refill frequency between one-three months, depending on your usage, and you’ll receive a 15% discount on every order for a total of $20.39.

HiSmile guarantees that your teeth will look a minimum of two shades lighter after using this kit as directed. You can request a refund if that doesn’t match your experience.

Popular Alternatives to HiSmile

HiSmile AuraGlow Snow Teeth Whitening
Price $59.99 $59.99 $149 (original) or $299 (wireless)
Products Included
  • Mouth Tray
  • LED Light
  • Three gel packs (enough for six treatments)
  • LED device
  • Two 5ml 35% carbamide peroxide whitening gel syringes (enough for 20 treatments)
  • Comfort fit mouth tray and storage case
  • LED mouthpiece
  • Three original strength and one extra strength serum wands (enough for 75 treatments)
  • Teeth whitening progress tracker
  • The wireless kit also includes anti-aging lip balm and desensitizing serum
Is Subscription Available? Yes, save 15% on gel refills Yes, save 25% on gel refills Yes, save 15% on serum refills
Active Ingredients Phthalimidoperoxycaproic acid (PAP), Hydroxyapatite, Potassium Nitrate Carbamide peroxide (35% and 44%) Hydrogen peroxide (6%-18%)
Reviews 3.7, 155 reviews (HighYa) 4.4, 13,700 reviews (Amazon) 3.0, 22 reviews (HighYa)

The two popular alternatives rely on peroxide ingredients.

Hydrogen peroxide is considered the traditional option for whitening teeth, and it’s what your dentist is most likely to use for in-house treatments.

It’s a common ingredient found in everything from medical supplies to mouthwash, but high concentrations have the potential to harm your enamel and consequently trigger tooth sensitivities.

Studies have found that lower concentrations used less frequently are the safest option, so keep this in mind when planning whitening treatments.

Carbamide peroxide can produce similar results, but it’s less likely to cause damage and takes longer to develop on the teeth.

This can be a pain if you want to eat and drink within a few hours after treatment, and it means that AuraGlow whitening products will work best before bed, not the middle of the day.

If you have sensitive teeth or are susceptible to enamel problems, we recommend sticking with HiSmile over the other two brands due to the lack of peroxide.

The Bottom Line

HiSmile teeth whitening products offer a viable alternative to potentially damaging peroxide, and clinical evidence and customer reviews both indicate that they will work.

At $10 per whitening treatment, you’ll pay much more for this brand than some of its competitors, and there’s minimal evidence that the LED light will make any difference for your teeth.

If you have a peroxide sensitivity, this is a brand we recommend.

Keep your expectations realistic about what your results could be and remember that they will be temporary—you’ll need to purchase more gel packs to maintain them over time.

Customer Reviews

3.5 Stars out of 166 Reviews
5 Star:56% 4 Star:5% 3 Star:1% 2 Star:6% 1 Star:30%
60% Recommend This Product
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Posted on Jul 29, 2023

This is a scam.

By Max R. , Portland, ME

I would love to see this company go down for how terrible the customer service is. It’s been 3+ weeks and I haven’t received an email or anything to know where it’s at. I would love to actually try it. But that’s hard when it’s not here.

Bottom Line: No, I would not recommend this to a friend

Pros and Cons

No “pros” were specified in this review

Crappy service

Terrible service

Did I mention horrible service

Posted on Jun 27, 2023

Awful company! No shipping information!

By Jeanette L., Los Angeles, CA, Verified Reviewer

This is a horrible company, horrible customer service, horrible shipping, all around horrible! I don't know why the heck they advertise 6 to 8 business days to ship, just be honest and say it will take MONTHS before I get my stuff.

I paid you so you're fast at getting my money but where the heck is my package?! Here is my order number US1591357; give my some information if you're not too busy responding to all the other pissed-off people.

Garbage, garbage, garbage!

Bottom Line: No, I would not recommend this to a friend

Posted on Jun 3, 2023

Poor customer service

By Lianna W., Arlington, TX, Verified Reviewer

I made an order on 5/16/2023, it said 3–10 business day processing. Still no update. Have sent an email on multiple occasions to cancel the order, no response. I don’t even care about the money back; I just don’t want the product or to do business with the company at this point.

Bottom Line: No, I would not recommend this to a friend

Posted on Jun 1, 2023

Didn’t even arrive

By Andrea F., London, United Kindom, Verified Reviewer

I’ve been trying to email HiSmile for the past several days to notify them that my V34 serum didn’t arrive but the whitening powder and strips did. I’ve sent several emails with no reply. Absolute waste of time and money.

Bottom Line: No, I would not recommend this to a friend

Posted on May 8, 2023

Product never arrived

By Eduardo F., Kirkland, WA, Verified Reviewer

I made my order on 04/08/2023 and have not received anything yet. According to the website the shipping takes between 3 to 6 business days. But that's a lie. Now I can't even cancel the order that has not even been shipped according to their "great" website. I want my money back. I have contacted support and never got a reply. Worst service ever. There should be a way to report this kind of company that lies in advertisements. If this is the kind of business they have, I can't imagine the quality of the product they are offering.

Bottom Line: No, I would not recommend this to a friend

Pros and Cons

No “pros” were specified in this review

Terrible shipping

Terrible customer support

Non-existent cancel order button on their site

Posted on May 8, 2023

Don’t pay extra for express shipping

By Gisellel L., Fontana, CA, Verified Reviewer

I was really excited to use the products. I even paid additional to have it delivered within 3 days. It’s been over a week now and nothing has been delivered. Kinda sucks that they don’t give you tracking details also. You're better off ordering from Amazon.

Bottom Line: No, I would not recommend this to a friend

Posted on Apr 30, 2023

Scam, no delivery

By Tanja J., New York, Verified Reviewer

I ordered on April 8th, today it is April 21st and the product is still in Australia. It will be two weeks tomorrow since the order, no update. I plan to dispute with the bank and get refunded. Do not order, they collect your money and you receive nothing.

Bottom Line: No, I would not recommend this to a friend

Posted on Feb 27, 2023

Scam company

By Derek R. , Virginia

Ordered this product on December 3rd. Never received it. Contacted the business a few weeks later and they said there was an issue at the shipping facility. They said they resent my package but I still haven’t received it. Now they’re saying they can’t give me a refund because there was an issue processing my refund. I asked for a check to be mailed to my address and haven’t heard back.

Bottom Line: No, I would not recommend this to a friend

Pros and Cons

Never received

Won’t refund me

Scam operation

No “cons” were specified in this review

Posted on Nov 28, 2022

HiSmile is a scam

By Isaac E., New York City, NY, Verified Reviewer

After purchasing and trying this crap, I emailed them. One of the first words in their sentences was "it is TEMPORARY." Nowhere when I purchased this product did it state "temporary." I didn't even get temporary results. No results at all! I emailed them with no help, they just apologize and say it's temporary. Ridiculous!

Length of Use: Less than 3 months

Bottom Line: No, I would not recommend this to a friend

Pros and Cons

Shipping was okay

Does not work, not even temporary

Posted on Jan 23, 2022

I placed an order over a month ago, still not shipped.

By Michaella E., New York, Verified Reviewer

I placed an order over a month ago and it still hasn’t even been shipped despite being told it would be a day or two. Now I’m not getting a response when I email them and had to email them again. I see some pretty good reviews for the product but it’s way too long to wait and dislike being ignored by customer service.

Bottom Line: No, I would not recommend this to a friend

Pros and Cons

No “pros” were specified in this review

Shipping is way too slow

Posted on Feb 26, 2021

Save your money

By Julia F., England, Verified Reviewer

Tried for 6 days, followed instructions, no change at all.

Save your money, it does not work, and it's expensive. Stick to regular whitening toothpastes, they work faster.

Length of Use: Less than 3 months

Bottom Line: No, I would not recommend this to a friend

Pros and Cons

The advertising

It doesn't work like it says

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