Drysol vs Certain Dri vs Duradry: Comparing Leading Antiperspirants for Excessive Sweaters

When you suffer from excessive sweating (aka, hyperhidrosis), the antiperspirant you find on the shelves at the grocery store likely won’t work, even if the label says “clinical strength” —  because those products aren’t using the right active ingredients to combat sustained sweating, or they're not using enough of the right ingredients to actually make a difference.

But finding out information about different antiperspirant brands is tough — especially in the world of excessive sweating, where misinformation is rampant.

Duradry, Drysol, and Certain Dri are three popular solutions for excessive sweaters on the market today, yet all three products are quite different in design and formula.

To help you find a solution to your excessive sweating, we put together this comparison guide. We’re going to look at each brand, its ingredients, its price, and where you can get hold of it.

First, let’s introduce ourselves. We are Duradry and we made a 3-step system to treat excessive sweating because we weren't satisfied with the solutions available — including some of the leading brands, like Certain Dri and Drysol.

Try Duradry’s 3-step solution that actually works to stop excessive sweating. Use Duradry PM at bedtime, Duradry AM in the morning, and Duradry Wash to deep clean and prepare your skin for total protection against hyperhidrosis. Get started for just $20.

1. Duradry

We sell three products that together form our 3-step system. That system includes:

  1. Duradry PM: Our topical gel that you apply to the affected area before you go to bed
  2. Duradry Wash: Our wash cleans off bacteria and any residue or oils, preparing your skin for the morning antiperspirant.
  3. Duradry AM: Our roll-on morning antiperspirant absorbs sweat and traps odors. 

Note: If you’re looking for a direct comparison of antiperspirants only, then you’ll want to read about Duradry PM — our cornerstone product that competes head-to-head with brands like Drysol and Certain Dri.

But more than 97% of customers who used all three products together achieved full dryness within one week.


Here’s how the 3-step system works.

Step One: Use Duradry PM Before You Go to Bed

Duradry PM is our cornerstone product that we made to help treat excessive sweating. We designed Duradry PM after we tried — and were unsatisfied with — Drysol, Certain Dri, and other excessive sweating treatments.

In Duradry PM, our active ingredient is Aluminum Chloride Hexahydrate. This is the most important ingredient for helping with excessive sweating because it treats the problem at the source. Aluminum chloride molecules soak up water and thicken it. When you apply aluminum chloride over areas of your skin where you excessively sweat, what you’re doing is allowing those molecules to thicken the water in the tiny holes in your skin where you perspire, which then blocks the sweat from coming out.

But while aluminum chloride is the most critical ingredient for treating excessive sweating, products that use more of it aren’t necessarily better.

We chose to use 15% aluminum chloride in Duradry PM for two reasons:

  1. Studies show 15% is just as effective as 20%, with the added bonus of not irritating the skin.

  2. By using 15%, you can buy Duradry without going to the doctor and getting a prescription. Any antiperspirant that uses more than 15% of aluminum chloride requires a prescription. This is inconvenient and adds to the cost of buying the product because now you need to factor in a co-pay to visit your general physician.

Plus, we paired our active ingredient of aluminum chloride with salicylic acid, to help boost the results of Duradry while also further reducing the risk of skin irritation.

You apply Duradry PM’s unscented gel before you go to bed, this allows the active ingredient to work while you're sleeping and your sweat glands are more inactive.

We chose to make Duradry PM a gel over a roll-on or liquid because:

  1. You get more uses per product, lowering the cost per application. If you’re using a liquid antiperspirant your money isn’t going as far as it does with a gel product. First, putting on a liquid isn’t as easy, leading to spills and waste. Second, liquids leak, which is a major issue, especially if you’re traveling. Finally, with liquids, you’re using a dab-on applicator which means there’s always going to be a little bit of product left at the bottom of the bottle that is nearly impossible to extract.

  2. More direct contact with your skin. If you’re applying Duradry PM to an area on your body with hair, the gel does a better job of making contact with the skin. This is important — if you’re using a roll-on or liquid for your underarms, less of the actual antiperspirant is making direct contact, reducing its overall effect.

Step Two: Use Duradry Wash in the Shower

In Duradry Wash, we use a thick, yet easy to rinse off Penta Foam Concentrate. This concentrate removes bacteria from your underarms, eliminating odors while moisturizing your skin like a lotion with help from vitamins and natural ingredients such as Green Tea Leaf Extract, Avocado Oil, and Grapefruit Seed Extract.

Plus, Duradry Wash removes any layers of antiperspirant residue, priming your skin for the active ingredients in our Duradry AM and PM products.

Duradry Wash can improve the performance of our other two steps by up to 20%.

Step Three: Use Duradry AM at the Start of Your Day

You apply Duradry AM at the start of your day. We put the maximum permitted amount of our pure active ingredient, Aluminum Zirconium Trichlorohydrex Glycine, into Duradry AM (20%).

We made Duradry AM with a pleasant, neutral scent so it works for both men and women

Plus, we added odor trapping and highly absorbent ingredients that keep you feeling fresh and clean throughout the day.

Where to Buy Duradry and Cost

By using the right amount of ingredients to stop excessive sweating we’re able to sell Duradry directly to our customers through our website. You don’t have to go to a doctor or a drug store. You put your order through our online store, and we deliver discreetly to your door. You can make a one-time purchase or save by enrolling in subscriptions. Plus, you can cancel your Durdray subscription whenever you want without any penalties.

You can get started for just $20, and if Duradry doesn’t control your excessive sweating, it’s on us.

2. Drysol

Drysol has been on the market longer than Certain Dri and Duradry. It’s known as a prescription-only antiperspirant. Like Duradry, it’s a topical solution, so you put it directly on your skin, whether it’s for your hands, feet, or underarms. You also apply it the night before, so it can get to work while you sleep.

Drysol is sold as a liquid with a dab-on applicator. In our experience, a liquid isn’t the best value for excessive sweaters, because with the dab-on applicator you’re never going to be able to get all of your Drysol of the container — meaning you get less value. Plus, because it’s a liquid, if you take Drysol with you as you travel, there’s an increased risk of it leaking in your bag.

But Drysol usually does what it says it does — thanks to its high amount of aluminum chloride (20%), it reduces excessive sweating.

Yet even the most positive Drysol customer reviews mention how it’s highly irritant to the skin — this includes rashes, itching, and pain. This is likely due to:

  • It's higher than the necessary amount of aluminum chloride
  • Its high concentration of ethanol in Drysol which dries the skin out.

Remember, recent studies — which came about after Drysol made its formula — have shown you can use 15% of aluminum chloride without losing any benefits while limiting the severity of side effects.

Where to Buy Drysol and Cost

Drysol, due to its strength and increased risk of side effects, is available only with a prescription from your dermatologist or general care practitioner. However, there are also Drysol products available illegitimately on Amazon at around $50 for two 35ml boxes. These sellers are breaking the law.

3. Certain Dri

Certain Dri makes three different products for excessive sweaters:

  1. Certain Dri Prescription Strength Clinical - This roll-on antiperspirant is technically the only product Certain Dri recommends for those suffering from excessive sweating. This is because it contains 12% of aluminum chloride — the active ingredient we discussed in Duradry and Drysol products that is key to reducing excessive sweating. But at 12%, this means Certain Dri’s strongest antiperspirant has less than both Duradry PM (15%) and Drysol (20%).

  2. Certain Dri Extra Strength Clinical- Certain Dri’s Extra Strength Clinical option is a solid antiperspirant and deodorant, like a traditional stick brand. It doesn’t use aluminum chloride — the active ingredient doctors champion for excessive sweaters — but instead uses 25% aluminum sesquichlorohydrate, which is the max concentration allowed by the FDA. (Note: Using aluminum sesquichlorohydrate is a relatively new approach to treating excessive sweating. At the time of writing, it’s shown positive results in treating palmar hyperhidrosis excessively sweaty hands — but there isn’t a lot of data on how it works on armpits.)

  3. Certain Dri Every Day Strength ClinicalCertain Dri’s third product is its only product marketed towards everyday use. It’s more of a traditional antiperspirant and deodorant combo that is easy on the skin. It uses 20% Aluminum Zirconium Complex. These are the same ingredients found in most of the antiperspirants on the shelf. That means if those haven’t worked for you, it’s unlikely that Certain Dri Every Day Strength Clinical will.

Two important things to note about Certain Dri:

  • Certain Dri markets its Prescription Strength Clinical — Roll-On as the “#1 doctor recommended” solution but according to their website, it is only considered the best because it uses aluminum chloride, which is the #1 active ingredient for excessive sweaters according to doctors. But as we covered, both Duradry and Drysol use more than 12% of aluminum chloride.

  • The independent study Certain Dri states came out in 2017, and it seems like the antiperspirant industry has changed significantly since then, as now you can get Duradry’s 3-step solution, which has more aluminum chloride than Certain Dri, doesn’t require a prescription, and comes with products that help moisturize and soothe the skin.

Where to Buy Certain Dri

Because of its low potency, Certain Dri can be bought at most brick-and-mortar stores that sell deodorant and antiperspirant. It can also be purchased online through its website or on Amazon.

Certain Dri is the budget choice, with 1.2 fluid ounces going for under $6. However, keep in mind this is really only a solution for someone who is suffering from a mild case of hyperhidrosis.

Final Thoughts: Drysol vs Certain Dri vs Duradry

I ​founded Duradry because ​I was looking for a way to stop my own excessive sweating. I tried several different hyperhidrosis treatments —from over-the-counter antiperspirants​ to botox injections, and found all of them lacking.

Sometimes the solution was lacking because it simply didn’t work, other times it’s because while it worked for a short period of time, it was far too costly to keep up.

So I made Duradry — a solution for excessive sweaters that is affordable and actually works.

When used together our three products:

  1. Block the pores that lead to excessive sweating
  2. Kill bacteria and moisturize the skin
  3. Absorb sweat throughout the day and neutralize body odors.

Plus, Duradry’s 3-step system treats excessive sweating without causing undue irritation on your skin.

Try Duradry’s 3-step solution that actually works to stop excessive sweating. Use Duradry PM at bedtime, Duradry AM in the morning, and Duradry Wash to deep clean and prepare your skin for total protection against hyperhidrosis. Get started for just $20.