Onyclean lists vitamin E, bergamot oil, jojoba seed oil, sea buckthorn fruit oil, and squalane as its formula. It is a botanical brush pen, not an undecylenic-acid nail treatment, and the seller does not state the amount of any listed ingredient.
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What ingredients are in the Onyclean pen?
The seller describes Onyclean as an advanced anti-fungal nail repair pen. Its product page identifies three “hero” botanicals—vitamin E, bergamot oil, and jojoba seed oil—and also names sea buckthorn fruit oil and squalane in the carrier.
| Listed ingredient | What the seller says it is for | Amount shown |
|---|---|---|
| Vitamin E (tocopherol) | Supports healthy-looking nail recovery | Not stated |
| Bergamot oil | Provides a botanical defense layer | Not stated |
| Jojoba seed oil | Provides hydrating nourishment | Not stated |
| Sea buckthorn fruit oil | Part of the cosmetic carrier | Not stated |
| Squalane | Part of the fast-absorbing cosmetic carrier | Not stated |
The seller lists a full ingredient list but does not state percentages or amounts for the formula. That matters if you are comparing it with a product built around an OTC drug ingredient such as undecylenic acid: undecylenic acid is not among Onyclean’s listed ingredients.
What does research say about these ingredients for nails?
The seller presents this formula as a botanical option for the look of thickened or discolored nails. The supplied product information does not give a human nail-study dose or study result for vitamin E, bergamot oil, jojoba oil, sea buckthorn oil, or squalane in this specific pen. The useful takeaway is simple: the named oils tell you the formula style, but not a clinical dose you can compare with a medicine.
Nails are made largely of keratin, a tough structural protein. A keratin research review explains why keratin is central to nail structure; it does not turn a topical botanical into a measured nail-treatment dose.
For a broader look at label claims and ingredient-level research, see Ingredient Evidence Guide. If you are taking medicines or considering an antifungal, Dr Bayer’s antifungal safety profile is a useful related read.
How do you use the pen?
The seller says to wash and thoroughly dry the nail, twist the pen base, brush a thin layer over the affected nail and surrounding skin, and let it dry without rinsing. Its directions say to use it twice daily, morning and night. The seller also advises applying it to a clean, bare nail rather than over polish, gel, or acrylics.
The seller says the formula was selected for gentleness on sensitive skin. If you develop redness or irritation, its directions say to stop using it and contact support.
Does this work like undecylenic acid, clotrimazole, or a prescription?
Not in formula. Onyclean is sold as a cosmetic botanical blend; it does not list undecylenic acid or clotrimazole. That means a direct ingredient-for-ingredient comparison with a drug-based nail product is not possible from the stated label details.
For nail changes that may be fungus, getting the cause identified can help you choose an option that fits the nail and surrounding skin. University of Utah Health notes that home approaches such as baking soda, vinegar, mouthwash, and snakeroot have different levels of support: one nail-sample study found baking soda reduced or stopped fungal growth, while a snakeroot extract nail polish was studied over six months against ciclopirox. It also notes that mouthwash has not been studied as a toenail-fungus cure.
There is no fast home fix in the sources supplied here. Harvard Health says OTC options can require weeks or months of regular use before visible improvement and that prescription options may perform better in some situations.
What does Onyclean cost, and what is the refund policy?
Prices shown by the seller as of October 8, 2026 describe the pen as costing under $40 one time; check the checkout for today’s price. To see the current offer or order, visit the Product Page.
The seller advertises a 90-day money-back guarantee. Its written returns policy says you must contact customer service for an RMA number, return the item in new, unused condition and intact original packaging, and use the return address supplied by customer service. It also says a 10% restocking fee or reconditioning charge may apply and that refunds can take up to 90 days after the returned item is received.
What should you confirm before you order?
- Ask support for the amount of each botanical if you have an allergy or need to compare formulas.
- Confirm the current price, bundle quantity, and whether the checkout applies the advertised promotion.
- Confirm the return steps before opening the pen, including the RMA requirement and any restocking fee.
- Ask a clinician whether the nail change needs an in-person assessment and which topical or prescription approach fits your situation.
- Ask whether any medicine, skin condition, pregnancy consideration, or history of reactions to fragrance oils changes what is appropriate for you.
If you are comparing brush pens, Dr Bayer’s Orivelle Anti-Fungal Pen page can help you keep product names and formula details separate.
By DrBayer.com Editorial Team
This article is for general information purposes only and does not constitute medical advice. Consult your doctor or qualified healthcare provider before making changes to your health routine.