Reviewed by Evan Lewis, PhD. Last updated August 2026.
If you're reading Nonyx reviews, here's the thing most of them skip: Nonyx and IodinePure aren't built for the same job. One clears out debris to improve how the nail looks. The other is a mineral soak routine that works the environment under the nail. Full disclosure, we make IodinePure, so weigh this comparison accordingly.
Key takeaways
- Nonyx works with ethanoic acid (acetic acid, the acid in vinegar). Its own positioning is "clarifying": it breaks down keratin debris, the yellow-brown buildup under fungal-looking nails.
- It's an appearance product, not an antifungal drug. Clearing debris genuinely improves the look of the nail you already have.
- IodinePure EZ Clear Nails is 2 ingredients, elemental iodine and pure water, in a 5 to 7 minute soak routine that reaches under and around the nail.
- Both take months. Toenails grow about 1.62mm a month (Yaemsiri et al., JEADV 2010, PubMed 19744178), not the 3mm figure borrowed from fingernails, so a full toenail is roughly a 12 to 18 month grow-out no matter what's in the bottle.
What Is Nonyx Nail Gel, Actually?
Nonyx Fungal Nail Clarifying Gel works with ethanoic acid, better known as acetic acid. The word to notice in the name is "clarifying." Nonyx's job is to break down and clear out keratin debris, the crumbly yellow-brown material that builds up under a fungal-looking nail.
That's a real job, and Nonyx does have real things going for it. Clearing debris visibly improves a nail's appearance. It's affordable. And podiatrists do stock it, which says something.
What it isn't: an antifungal drug. Nonyx doesn't claim to be one. It's an appearance product, and it's honest about that. The debris gets cleared, the nail looks better, and the underlying environment is a separate question.
What Is IodinePure EZ Clear Nails, Actually?
IodinePure EZ Clear Nails is 2 ingredients: elemental iodine and pure water. Iodine has been a foot and skin care staple since the 1800s, and three published papers we walk through here applied iodine preparations to onychomycosis-affected toenails.
They are small, and it is worth being precise about that. Capriotti and colleagues (2016) reviewed the charts of 13 patients using a 1% povidone-iodine preparation in a dimethylsulfoxide solvent system, and 8 of 13 were culture-negative at 24 weeks. Capriotti and Capriotti (2015) is a single-patient case report, and Davidson (2006) is a one-paragraph letter describing one self-treated case.
On the element itself, Lepelletier and colleagues (2020) describe iodine as rapidly penetrating microorganisms and oxidising key proteins, nucleotides and fatty acids, with no observed link to resistance developing. Those are findings about iodine as an ingredient, in the preparations each research group used, not about any bottle on a shelf.
The format matters as much as the mineral. The 90-Day Toe Kit is built around a 5 to 7 minute soak that submerges the whole toe, so the liquid reaches under the nail edge and into the folds along the sides. A twice-daily spray covers the hours between soaks.
It's the routine 200+ foot care clinics across North America send home with their clients, it supports the look of clearer nails as new nail grows out, and it carries a 90-day money back guarantee.
How Do They Compare Side by Side?
Two different jobs. One clears the debris you can see, the other works the environment underneath.
| Nonyx Nail Gel | IodinePure EZ Clear Nails | |
|---|---|---|
| Ingredients | Ethanoic (acetic) acid in a gel | 2 ingredients: elemental iodine and pure water |
| What it's built to do | Clear keratin debris to improve nail appearance | Support the look of clearer nails with a daily iodine soak and spray routine |
| Application | Gel applied to the nail | 5 to 7 minute soak plus twice-daily spray |
| Reaches under the nail? | Works where the gel contacts the debris | Yes. The soak submerges the toe, so liquid reaches under the nail edge and into the folds |
| Availability | Drugstores and some podiatry offices, affordable | iodinepure.com, ships across North America |
| Timeline | Months. Toenails grow about 1.62mm a month | 90-day protocol, same nail growth math |
| Guarantee | Depends on the retailer | 90-day money back guarantee |
Which One Should You Pick?
Pick Nonyx if the crumbly buildup is your main complaint and you want the nail you have right now to look better. Debris-clearing is its whole job, and it does that job at a low price.
Pick IodinePure if you want to work on the environment under the nail while the new nail grows out. That's what a daily soak routine is built for, and it's why foot care clinics hand our kit to clients rather than pointing at a shelf.
Honestly, the two don't even fight. Some people clear debris and run a soak routine in the same season. And whichever way you go, having a foot care professional thin a thick nail first gives everything that touches it afterward less material to work through.
IodinePure EZ Clear Nails 90-Day Toe Kit
Two ingredients. One routine. Built for the environment under the nail.
✓ Elemental iodine and pure water, nothing else
✓ 5 to 7 minute soak reaches under and around the nail
✓ The routine 200+ foot care clinics send home
✓ Listed with Health Canada as a cosmetic
✓ 90-day money back guarantee
Start The 90-Day ProtocolCommon questions
Does Nonyx nail gel work?
For its stated job, yes: it breaks down keratin debris, the yellow-brown buildup under fungal-looking nails, and clearing that out improves how the nail looks. It's an appearance product by its own positioning, not an antifungal drug.
What are the ingredients in Nonyx?
Nonyx's working ingredient is ethanoic acid, better known as acetic acid, in a gel base. The full list is on its label. For comparison, IodinePure EZ Clear Nails has 2 ingredients total: elemental iodine and pure water.
What are Nonyx nail gel side effects?
Check the warnings on the Nonyx label, since that's the accurate source for its formula. As with any acid-based gel, the standard advice applies: follow the directions and stop if skin gets irritated. IodinePure's soak is water and iodine, and the same common-sense rule applies to any topical.
Which is better, Nonyx or IodinePure?
Depends which job you're hiring for. If crumbly debris is the complaint, Nonyx clears it. If you want a routine that reaches the environment under the nail every day, that's what the IodinePure soak is built for, and it's the one 200+ foot care clinics across North America send home.
How long before a toenail actually looks different?
Longer than either label suggests, because the limit is biology rather than the bottle. Toenails grow about 1.62mm a month, and a great toenail runs 20 to 25mm from base to tip, so a completely replaced nail is a 12 to 18 month project. New growth at the base is usually visible somewhere around 60 to 90 days, which is what you judge progress on.
The bottom line
Nonyx is a fair product doing a specific job: clearing debris so the nail you have looks better. IodinePure is 2 ingredients and a soak routine built to reach where the problem lives, backed by a 90-day guarantee. Check what's in the bottle, know which job you're hiring for, and give either one the months that 1.62mm-a-month toenail growth demands.
We ran the same honest exercise on two other shelf staples: Kerasal vs IodinePure and Fungi-Nail vs IodinePure.
References
- Yaemsiri S, Hou N, Slining MM, He K. Growth rate of human fingernails and toenails in healthy American young adults. J Eur Acad Dermatol Venereol. 2010. PubMed 19744178
- Capriotti K, Stewart KP, Pelletier JP, Capriotti J. Treatment of onychomycosis with dilute topical povidone-iodine in a dimethylsulfoxide solvent system. Clin Res Trials. 2016. DOI 10.15761/CRT.1000162. Full text
- Capriotti K, Capriotti JA. Onychomycosis treated with a dilute povidone-iodine/dimethyl sulfoxide preparation. Int Med Case Rep J. 2015. PMC4599634
- Davidson R. An economical cure. CMAJ. 2006. PMC1569938
- Lepelletier D, Maillard JY, Pozzetto B, Simon A. Povidone iodine: properties, mechanisms of action, and role in infection control. Antimicrob Agents Chemother. 2020. PMC7449185
Evan Lewis, PhD, specializes in natural and nutritional therapies for the prevention and management of chronic diseases and their complications. His research spans chronic disease, diabetes complications, clinical nutrition, and nerve health, including the development of topical iodine therapy for foot care and wound health. IodinePure products are listed with Health Canada as cosmetics. Nonyx is a trademark of its respective owner; ingredient information is from publicly available product labeling.
