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Gundry MD Dark Spot Diminisher

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Gundry MD Dark Spot Diminisher

Overall Rating


630 Customer Reviews

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The Dark Spot Diminisher is a skin serum that claims to use polyphenols and other beneficial ingredients to even out your skin tone and fade dark spots. Customer reviews indicate it works as described, and the ingredients are mild enough for most skin types.


  • Ingredients show clinical evidence for reducing dark spots
  • Minimal side effects associated with ingredients
  • Positive customer reviews indicate it works for many


  • Confusing pricing information
  • No ingredients that stand out compared to other dark spot treatments

Gundry MD Dark Spot Diminisher Review: A Detailed Look

By Lydia Noyes

Updated on: Apr 30, 2020

The Gundry MD Dark Spot Diminisher claims to combat many forms of skin discoloration, including age spots, sun spots, and liver spots. This advanced serum promises to transform a blotchy, uneven skin tone to restore your skin and give you a more youthful appearance.

Dr. Gundry is an American doctor and author who formerly worked as a cardiac surgeon. He’s written numerous books on holistic wellness through a better diet and has released a line of supplements and skincare products designed to keep you looking young and feeling healthy.

The Dark Spot Diminisher’s formula contains a range of ingredients that will purportedly improve your skin’s health without adverse side effects, meaning that you can use it for the long term.

These claims aren’t unique within the anti-aging skincare industry. Does the Gundry MD Dark Spot Diminisher stand out from other options? Our analysis of this premium product will help you decide if it is a good option for you.

How to Use It

The Gundry MD Dark Spot Diminisher is a skincare serum designed for twice-daily use. The company suggests you apply it to your trouble spots twice daily in the morning and evening.

You can start by applying a dime-sized amount to your dark spots and surrounding areas, massaging it into your skin with gentle circular motions.

Make sure you leave it on for as long as possible before showering or otherwise rinsing it off so that the active ingredients have time to work.

Analysis of Ingredients

Many of the ingredients in the Gundry MD Dark Spot Diminisher act as emollients, exfoliants, skin lightening agents, humectants, thickening agents, preservatives, natural sources of antioxidants, and other skin conditioning agents.

A few deserve a second look.

Bacillus ferment is an enzyme-based skin exfoliant that is used as an alternative to alpha hydroxy acid (AHA), a class of compounds that are often used to plump and smooth the skin while visibly brightening dark spots. Some people experience adverse side effects from AHA’s like burning, itching, or even blisters, so bacillus ferment is often used as a milder alternative with less risk of irritation.

Diglucosyl gallic acid, also known as trihydroxy benzoic acid alpha-glucoside, is a patented molecule that’s used to lighten skin pigmentation and brighten your overall skin tone. It can reduce dark spots and prevent new ones from forming.

Sodium hyaluronate is a common ingredient in anti-aging products because it will purportedly increase your collagen production to improve your skin’s elasticity and fill in fine lines and wrinkles. Clinical evidence shows that it will work as described, but only when taken as injections. There’s less evidence right now that it will work when used topically in a skin cream.

Diamond powder is often added to skincare products, both to increase their perceived value and to act as a natural exfoliant. The powder is commonly used as a brightener to disguise fine lines and wrinkles by reflecting light off your skin. However, this ingredient is listed low in the Gundry MD Dark Spot Diminisher, so you shouldn’t assume there’s much in it.

Finally, the serum includes a range of plant extracts that are known as polyphenols. Renowned for their high antioxidant content, polyphenols applied topically are considered an effective way to combat some of the causes of aging skin, including environmental damage and free radical exposure.

Overall, many ingredients in the Gundry MD Dark Spot Diminisher show promise for working as described to moisturize your skin and lighten your dark spots.

Possible Side Effects

According to the company website, all Dark Spot Diminisher ingredients are 100% safe for topical use and won’t lead to skin irritation when used correctly.

We didn’t uncover any known side effects throughout the research process, and in at least one case—bacillus ferment—a milder version of a popular ingredient is used to reduce irritation further.

If you tend to have sensitive skin, it’s still a good idea to perform a patch test before using this product. Dab a small amount on your arm and watch how your skin responds over 24 hours before applying it to your face.

Pricing and Money-Back Guarantee

Gundry MD Dark Spot Diminisher is currently listed on the company’s official website at the following prices:

  • One Bottle: $120
  • Two Bottles: $228
  • Three Bottles: $324

However, we also found an “internet only promotion” offer from the company where the same-sized bottles of Gundry MD Dark Spot Diminisher cost the following:

  • One Bottle: $49
  • Two Bottles: $86 ($43 each)
  • Three Bottles: $120 ($40 each)

In other words, you may want to shop around.

Shipping seems to be free for all purchases, and you can expect two to seven-day delivery.

All orders from the company website qualify for a 90-day money-back warranty that comes into effect on the day you make the purchase. Keep in mind that purchases from other retailers such as Amazon don’t qualify for this refund and that you’ll need to pay any return shipping costs.

You can initiate this process by contacting customer service at (800) 852-0477 or support@gundrymd.com.

Analysis of Customer Reviews

We have almost 500 reviews of the Gundy MD here at HighYa, and the product has averaged an impressive 4.2 stars, with 89% of users saying that they would recommend to it a friend. Here’s a closer look at what these customers want you to know:

Common Compliments:

  • Began to reduce dark spots within a week of use
  • Left hands looking younger after treatment
  • Works well if you prep your skin beforehand

Common Complaints:

  • Didn’t work as promised to lighten dark spots, even after months of use
  • The scent was too strong for some users
  • Results were too subtle for the cost
  • Left a reddish tone on some user’s skin
  • Some experienced delayed shipping

Popular Alternatives

Plenty of options are available today, promising to restore your skin and even out its coloring. Here’s a summary of how it compares to two popular products: the Beverly Hills MD Dark Spot Corrector and the City Beauty Illuminating Dark Spot Corrector.

Gundry MD Polyphenol Dark Spot Diminisher Beverly Hills MD Dark Spot Corrector City Beauty Illuminating Dark Spot Corrector
Cost $120 per bottle (1-oz) $129.95 per bottle (1-oz) $72 per bottle (1-oz)
Key Ingredients Bacillus ferment, Diglucosyl gallic acid, Sodium hyaluronate, polyphenols Kakadu Plum, DermalRx, Daisy Flower Extract, Niacinamide Alpha Arbutin, Sepiwhite-MSH, Resveratrol
Average HighYa Rating 4.2, 89% would recommend to a friend 4.5, 89% would recommend to a friend 4.3, 89% would recommend to a friend

As this chart shows, both the Gundry MD and Beverly Hills MD dark spot treatments cost approximately the same amount, at over $120 per 1-oz bottle. The City Beauty Illuminating Dark Spot is comparatively affordable at almost half the cost.

What’s interesting is that all three products rely on significantly different ingredients to achieve the same aim—fading dark spots on the skin. One consistency between them is that each contains a plethora of plant-based ingredients that act as natural sources of antioxidants and polyphenols to improve your skin naturally.

Each has also earned a stellar review from HighYa readers, averaging more than four stars and close to nine out of 10 readers recommending them to others.

In our estimation, this means that you can’t go wrong with experimenting with any one of these dark spot removers. Each company also offers a no-questions-asked return policy, so you will only be out the cost of shipping if you decide it isn’t right for you.

The Bottom Line: Is It Worth It?

Overall, the Gundry MD Dark Spot Corrector seems to be a viable option for improving your skin and fading dark spots. None of the product’s ingredients raised any red flags from a safety standpoint, and many show clinical evidence for improving your skin texture and tone so that you look younger.

One thing to be aware of is that this product seems to be sold at wildly varying price points across the web – even from the official company. We found savings of almost 60% per bottle on different websites, so we recommend shopping around before committing either way.

The Gundry MD Dark Spot Diminisher was a positive purchase for many reviewers, and there’s a good chance that you will have a similar experience. Just keep in mind that there are plenty of similar products available that will likely deliver the same level of results, so it’s worth shopping around.

Customer Reviews

4.3 Stars out of 630 Reviews
5 Star:52% 4 Star:34% 3 Star:5% 2 Star:2% 1 Star:5%
90% Recommend This Product
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Posted on Jul 28, 2021

Gundry MD Dark Spot Diminisher review

By Nola C., Smithers, British Columbia, Canada, Verified Reviewer

My adult daughter and myself have been using the Gundry MD Dark Spot Diminisher product for about 6 weeks now and we have both noticed a better complexion and a lightening of dark spots. I tend to have allergy reactions and get eczema and red spots on my face. Gundry MD Dark Spot Diminisher has really evened out my blemishes and lightened the red spots. My daughter was in university in the Grand Caymans and had gotten quite a few sunspots from the intense sunshine there. The Gundry MD Dark Spot Diminisher is beginning to lighten the spots. We will keep using this product.

Length of Use: Less than 3 months

Bottom Line: Yes, I would recommend this to a friend

Pros and Cons

We noticed we didn’t need any face cream moisturizer when we used the Gundry MD Dark Spot Diminisher

Gundry MD Dark Spot Diminisher goes on very nicely

A little Gundry MD Dark Spot Diminisher goes a long way

No “cons” were specified in this review

Posted on Jul 27, 2021

Good results

By Kris A., Saint Nazianz, WI, Verified Reviewer

I usually only used the dark spot remover once a day in the morning and my dark spot is almost gone. I had tried something else that didn’t work. The product feels very good on my skin and I would recommend it to anybody. It works.

Length of Use: Less than 3 months

Bottom Line: Yes, I would recommend this to a friend

Pros and Cons

Easy to apply

Feels good on skin


No “cons” were specified in this review

Posted on Jul 23, 2021

Dark spots

By Martha L. , Laredo, TX

I saw great improvement on my face. I started seeing the results after a week into use. My spots were very dark, but now I’m able to hide them with makeup, something that I had not been able to do. I’m looking forward to seeing how the spots will disappear with the use of Gundry MD.

Length of Use: Less than 3 months

Bottom Line: Yes, I would recommend this to a friend

Pros and Cons

Leaves the face soft

Easy to use

No harmful chemicals

The bottle contains very little of the formula

Posted on Jul 22, 2021

Slow fade but it works

By Karol R., Asheville, NC, Verified Reviewer

Works! It is a slow fade but it works. Happily my hands are not looking old! If only there was a way to slather my whole body in this...but that would be really expensive.

At least creating a lotion for my arms would be beneficial for all those years of sun damage...

Length of Use: Less than 3 months

Bottom Line: Yes, I would recommend this to a friend

Pros and Cons

Soaks in.

You have to keep using it.

Posted on Jul 22, 2021

Dark Spot Diminisher

By Belinda B., California, Verified Reviewer

Happy this product is working very well for me and was not a waste of my time. My dark spots are diminishing, but I found this helped the overall look of my face by reducing puffiness and lines. I'm not sure if it was supposed to do that, but it has!

Length of Use: Less than 3 months

Bottom Line: Yes, I would recommend this to a friend

Pros and Cons

Reduced puffiness

Reduced fine lines

Reducing dark spots

I wish the bottle was a bit larger

I wish the dropper had more room when putting back inside, I lose some product here

Posted on Jul 20, 2021

It works really good

By Ignacia V. , Houston, TX

I have been trying different products to diminish my dark spots but none of them worked until I got Gundry MD Dark Spot Diminisher. I could see the difference since 2 weeks of using it. Besides diminishing my spot the appearance of my skin improved a lot. I’m so happy with the results.

Length of Use: Less than 3 months

Bottom Line: Yes, I would recommend this to a friend

Pros and Cons

Diminishing my spot

Improve the appearance of the skin


I wish the bottle had more product

Posted on Jul 11, 2021

Reduced age spot/melasma by 50-70% with one bottle!

By Stephanie L., Singapore, Verified Reviewer

I'm 50, have clear skin, and live in the tropics. I only use sunscreen when swimming. Over the last 12 years, a spot just below my left eye grew larger and darker (size of a dime). The derm said it's an age spot. Her suggestion was either to undergo a laser and apply daily sunblock. I didn't want to do any invasive skin lightening treatment. So I tried numerous expensive 'whitening' products and even natural homemade remedies, without much success. I read other reviews of being diligent and applying the serum 2x daily and being patient as it takes a while.

So after two weeks, I noticed a visible lightening of the spot. And as I also apply the serum around the cheek, the lesser obvious developing freckles went away. The net result is a more even skin tone.

I was totally surprised that it works. I'm not sure if the melasma will completely go away as the lightening has stabilized. But I am encouraged to finish my 3 bottles.

I've seen my mum's age spot/melasma grow. She's 83 and it covers half her cheek, and no amount of foundation can hide it. I have 30 years to get to her age, so I need to keep it as pale as possible. FYI - I am a Functional Nutritionist, and I try to get as many antioxidant sources from food with plenty of rainbow-colored plant foods and healthy fats.

Length of Use: Less than 3 months

Bottom Line: Yes, I would recommend this to a friend

Pros and Cons

Reduces age spots effectively

Smells and feels lovely on the skin

The applicator syringe makes messy drops

Messy drops dry on the opening

Posted on Jul 6, 2021

Freckles, beware!

By Diane C., LaBelle, FL, Verified Reviewer

To be perfectly honest, I'm usually skeptical about most facial products living up to the promises attached to them; but for the first time EVER I actually am noticing a difference in my facial AURA. That may seem to be an odd way to describe what reflects back at me, but when I catch a glimpse of myself in the mirror, I'm often drawn back to do a double-take. It seems as if the evening of my skin tone has produced a more peaceful appearance.

Length of Use: Less than 3 months

Bottom Line: Yes, I would recommend this to a friend

Pros and Cons

The spreadable softness of the serum

How a little serum goes so far

The mild fragrance is so pleasant

I wish I could afford 3 more bottles

Posted on Jul 6, 2021

It works!

By Glenda M., Sun City West, AZ, Verified Reviewer

The dark spots on my face and hands are almost gone! Very easy to apply twice a day for such GREAT results.

Very fast to see results on my face. My hands had very bad dark spots, which are less than 10% of what they were and still disappearing.

Length of Use: Less than 3 months

Bottom Line: Yes, I would recommend this to a friend

Pros and Cons

It reduces my dark spots to almost invisible

It applies easily with the stopper applicator

Portable for traveling and using on the road

Runs a little bit

Shiny at the time of application, but does dry quickly

Posted on Jul 5, 2021

Brilliant product

By Bee T., Victoria, Australia, Verified Reviewer

My dark spot/melasma started ten years ago. It became more and more with age. I tried many products from the departmental store but none of them provide lightening effect. The worst is the cream containing Hydroquinone, my dark spot went from bad to worst!

Finally I found Gundry Dark Spot Diminisher.

I can see results in 2 weeks! My dark spot faded 60% after using it twice daily for one month. I was so thankful to Dr. Gundry and his team, such a brilliant product! My dull and patchy face became brilliant and shiny.

Length of Use: Less than 3 months

Bottom Line: Yes, I would recommend this to a friend

Pros and Cons


No side effect

Safe to use

No “cons” were specified in this review

Helpful Review? 1 Person Has Voted

Posted on Jul 1, 2021

Amazing product

By Lien G. , Tomball, TX

I have tried several MD prescriptions to get rid of or diminish the numerous deep dark spots that have ruined and aged my face.

Your diminisher has lightened most of the dark spots after using it for about 2 months. What I have enjoyed about your product is that it does not leave color stains on my clothes and towels, it does not have a bad odor, and mostly it’s gentle on my thin skin and I have not had any adverse skin reactions like I have had with other products. Most important it has worked on my dark spots which have been very very hard to treat!

I hope your product will continue to further diminish my dark spots to where they are gone for good or at least not the FIRST thing people focus on when they see me. I’m turning 50 next month and the thought of taking pictures is something I have shied away from these past 5 years.

Thank you for creating this product Dr. Gundry! Your innovation has helped give me hope...

Kind regards.

Length of Use: Less than 3 months

Bottom Line: Yes, I would recommend this to a friend

Pros and Cons

Gentle on thin skin

No bad odor

Does not stain

Effective in diminishing dark spots

Not over priced like other like products

No “cons” were specified in this review

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