Crest 3D whitestrips with light teeth whitening kit REVIEW

Get whiter teeth in just 10 days!

Teeth whitening has been so massive and popular on the internet over the last year and is only getting bigger, one of the hottest trends across social media. I must say that I love having white teeeeeeeth when I talk and laugh out loud. I am so glad that I can experience having professional white teeth without visiting a dentist and paying tons for it. In this post I will be giving you my full honest opinion on the Crest 3D White whitestrips with light teeth whitening kit. (This is not sponsored.) I’m always honest anyway 😉

Crest whitestrips light package

With a number of different premium teeth whitening brands out there (e.g. BrightWhiteSmile, HiSmile, White with Style…) they all claimed that their products work. So… how can we determine which one is better for us? Well, we got to do some research. I spent couple of days looking into different reviews and compared the prices, the efficiency and the reputation of the brands etc. I finally chose Crest 3D White whitestrips with light.

Crest unboxing

 What’s in the box?

  • 10 x whitestrips (upper and lower)
  • Water-resistant blue light (batteries included)
  • Usage instructions

Before crest

(A photo of my yellow teeth before any treatment.)

Ok… Let’s get started!

Crest strips

Step 1:

Apply strips (upper and lower) and wear for 1 hour.
Wear the strips for the full hour before using the light.

It said on the website you can even drink water while having these strips in your mouth… but I will not do that because it tastes like chemicals, not very nice…

A brand called ‘White with Style’ offers so many different favours like mint, cotton candy, strawberry and cinnamon etc. I have never tried that because I still prefer Crest overall.

Leave me a comment and let me know your thoughts on ‘White with Style’ if you have ever used their products 🙂

Applied crest

Step 2:

After 1 hour, press and hold the two buttons simultaneously
to turn on the light, then release.

More info: They claimed that they use the same enamel-safe whitening ingredient used in dentist offices and their unique blue light system uses the same type of light technology dentists use.

Step 3:

Then place light against the top strip until the light automatically
turns off after a few minutes.

Crest light upper

Step 4:

Turn on light and place light against the bottom strip until the light
automatically turns off after a few minutes. Then remove the
light and strips.

The blue light weakens stains so that the whitening ingredient can work more effectively.

Crest light lower


I find it quite uncomfortable with loads of gel-like saliva in my month and when I put out the light, can you imagine… all the jelly-looking saliva dripping down to the sink. Lovely… but I believe this happens with all light kit products.

After crest

Yay! After 10 applications… I’m pretty happy with my results. I can see a huge difference with my teeth after 10 days of treatment! (Noticeable result even after just 1 use.)

before and after crest

Great result but something you need to know…

The down sides are… my teeth get very sensitive and my gum feels a bit sore! I’ve heard this is normal for almost every teeth whitening product but obviously if you can’t stand it, maybe you shouldn’t consider this kit.

Whitening toothpaste

At the meantime, I am trying out these whitening toothpastes that you can get from the local drugstores. The Colgate Max White Expert White and One are great but the Pearl Drops Charcoal Innovation just doesn’t do anything at all.

I think you do need to use some kind of whitening toothpaste to maintain your teeth’s whiteness. Other than that, try to drink less coffee and tea (indeed it’s very hard to give up on them, I still drink tea most days…) and of course Please Don’t Smoke —> Black teeth, black lungs!

HiSmile vs Crest teeth whitening kit with light

Hismile price

I’ve seen that a lot of famous beauty bloggers and celebrities (e.g. Kylie Jenner) are using HiSmile teeth whitening kits but I believe it is based on online marketing promotions and sponsorship. In fact, many of them have actually had their teeth whitening surgery/ treatment done professionally by certified dentists. Even though, this kit does do the job, many videos have proved that your teeth will get noticeably whiter after even just one application.

However, the question is … How long does the results last? With the cost $79.99 AUD/ £49.99 GBP (quite expansive) and it will only last for 1-3 months. (read from HiSmile official website)

Crest price

I purchased this kit on Amazon and they offered me a $5.00 coupon plus free shipping but I had to pay the import cost $13.35 USD due to the product being posted from USA to UK and I ended up paying $75.10 USD/£60.56 GBP in total. It’s honestly still a reasonable price for a long-lasting result.

More importantly, this kit is so much easier and less messy to use. There is no gel pen, no mould or mouth tray needed. Yet, you can still have your front teeth fully filled with the teeth whitening ingredient by the tailor-fit whitestrips.

Here is the link to shop: Whitestrips with Light, 10 ct.

Crest wins my heart:
  • Reasonable price
  • No surgery or dentist needed
  • Less messy
  • Easy to apply
  • Whiter teeth instantly
  • Quick result (10 days treatment)
  • Long-lasting result (Last up to 36 months)
  • Trustworthy brand

If you have any question or comment, please leave your message in the comment box or email me.

Let’s keep in touch!💞 Check out my Instagram: cindyhangelo

❤️Much love xoxo


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17 thoughts on “Crest 3D whitestrips with light teeth whitening kit REVIEW”

  1. Thanks for your detailed user’s view info on the Crest (with light) Teeth Whitening kit. Much appreciated. My son is planning to use and I wanted to see what others had to say. This was really good clear instructions as well as what the user would experience. And thank you for the comparison to other products as well. It’s just overwhelming to have so many to choose from.

    1. Hi Susan, so sorry for missing your comment!! It’s great that you are helping your son find a safe and efective teeth whitening kit, the choice really is overwhelming.

      If you have decided to go with my reccomendation or any other kits please let me know how it went! I would love to hear what you think. 🙂

    1. Hi Krissy, thank you for leaving your comment. So, the LED is designed to last for the ten treatments only, it may not last much longer than that. If it has run out before then I suggest you take it back to the store you bought it from! I hope that helps! 🙂

  2. Hello, just wondering if you noticed any decrease in your teeth color after 12 months, 24 months, and now at 33 months?

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