Verdict: A well-designed nail oil: undecylenic acid, an FDA-recognized antifungal active, plus tea tree, clove, manuka, lavender and lemongrass oils in a moisturizing base, with a brush applicator and a 60-day refund that starts on delivery. Results take patience because toenails grow slowly, and people with diabetes or a severe infection should see a podiatrist first. For most buyers, the 3-bottle pack is the right place to start.
Sold only on the official site, with checkout by ClickBank. 60-day refund window.
Check the current price on kerassentials.com| Product | Kerassentials, a topical oil for toenails, fingernails and the skin around them |
|---|---|
| Size and use | 0.5 oz (15 ml) bottle with brush applicator; apply 4 times a day |
| Ingredients | 17: undecylenic acid (5%), tea tree, clove bud, manuka, lavender and lemongrass oils, menthol, camphor, aloe vera, vitamin E and six carrier oils |
| Price | $49 to $79 per bottle depending on the pack; no single-bottle option |
| Guarantee | 60 days from delivery; return all bottles, you pay return postage |
| Sold by | ClickBank, through kerassentials.com only |
| Charge shows as | CLKBANK*Kerassentials |
What Kerassentials is
Kerassentials is a topical oil for toenails, fingernails and the skin around them. It comes in a 0.5 oz (15 ml) amber bottle with a brush applicator built into the cap. The label calls it a "Doctor Formulated Blend For Healthy Skin and Nails," and the sales page pitches it to people who have spent "months or years with toenail itching and foul smell" and tried creams and pills without much luck.
It is not a pill or a supplement. You paint it onto the nail, work it into the cuticle and leave it to soak in. The listed active is undecylenic acid at 5%, a fatty acid antifungal, and the rest of the formula is a mix of essential oils (tea tree, clove bud, manuka, lavender, lemongrass), menthol and camphor, aloe vera, vitamin E and six carrier oils.
You can only buy it on the official website, kerassentials.com, and ClickBank handles the checkout. Your card statement will show "CLKBANK*Kerassentials." The product is distributed from Aurora, Colorado, which is also where returns go.
How Kerassentials works
Most nail fungus is caused by dermatophytes, the same family of fungi behind athlete's foot. They live in and under the nail plate and feed on keratin, the protein nails are made of, which is why an infected nail turns thick, yellow and crumbly. The American Academy of Dermatology describes how the infection often starts as athlete's foot and spreads to the nail.
Kerassentials goes at the problem from three sides. The antifungal part is undecylenic acid, which disrupts the fungal cell membrane and stops yeast from switching to its invasive form, backed by clove, tea tree, manuka, lemongrass and lavender oils, all of which kill dermatophytes in lab studies.
Then there is getting it where it needs to go. Menthol, camphor and the light carrier oils help the formula spread into the cuticle and under the edge of the nail, where fungus hides, and filing the nail surface first, as the label suggests, lets more of it through.
The rest of the bottle looks after the skin. Jojoba, almond, flaxseed, chia and walnut oils, plus aloe vera and vitamin E, soften cracked skin and dry cuticles so the area around the nail stays healthy.
I like that the formula pairs a real antifungal active with oils that keep people using it. A product that is pleasant to apply four times a day gets used; a harsh one sits in the drawer. The full explanation is on how Kerassentials works.
The ingredients at a glance
The label lists 17 ingredients. Here are the ones doing the main work, next to what the research says.
| Ingredient | Role | What the research shows |
|---|---|---|
| Undecylenic acid (5%) | Antifungal active | Recognized by the FDA as an OTC antifungal for athlete's foot and ringworm. Stops Candida from forming biofilm in lab tests. |
| Tea tree oil | Antifungal | In a 6-month trial on toenails, 100% tea tree oil matched 1% clotrimazole for clinical improvement. |
| Clove bud oil | Antifungal | Eugenol, its main compound, kills dermatophytes and even fluconazole-resistant yeasts in the lab. |
| Menthol and camphor | Penetration, cooling | A VapoRub case series (menthol, camphor, eucalyptus) found 83% of toenails improved over 48 weeks. |
| Manuka, lemongrass, lavender | Antifungal support | Strong activity against nail fungi in lab and early studies. |
| Jojoba, almond, flaxseed, chia, walnut, canola | Carriers and conditioners | Soften skin and cuticles and help spread the actives. |
| Aloe vera, vitamin E | Skin soothing | Vitamin E was part of a nail oil that cleared most cases in a 12-month open study. |
The tea tree result comes from a 1994 study in the Journal of Family Practice, and the VapoRub numbers from a case series in the Journal of the American Board of Family Medicine. Every ingredient is covered in more detail on the Kerassentials ingredients page.
Good to know: undecylenic acid is listed at 5%. Over-the-counter athlete's foot products use 10 to 25%. At 5% it works as one part of a team with the essential oils rather than as a drug-strength dose on its own.
How to use it
The label is specific: apply four times a day, twice in the morning and twice in the afternoon. Brush the oil over the whole nail, then use a cotton swab to work it into the cuticle and under the free edge. For best results, file the top of the nail lightly with an emery board first so the oil soaks in more.
Clean, dry feet make a difference. Apply after a shower, let it absorb for a few minutes before putting on socks, and keep the brush from touching healthy nails so you don't carry fungus from one to the other. A step-by-step routine, with tips for keeping up four applications a day, is on how to use Kerassentials.
What to expect and when
The company says most people see results in 9 to 12 weeks, and that matches how nails work. The oil can calm itching and soften the skin within days, but the damaged part of a nail does not turn clear; it has to grow out. New, healthier nail appears at the base and slowly pushes the old part forward. The AAD notes that a toenail can take 12 to 18 months to regrow completely.
So judge it by the base of the nail. Take a photo of each affected nail on day one, then again every four weeks in the same light. If the new growth at the cuticle looks clear and pink by week 8 to 12, the routine is working, and you keep going until the old nail is trimmed away.
Side effects and who should check first
Kerassentials is for external use only, and side effects are uncommon. Things to know:
- Essential oils, especially tea tree and clove, can cause redness or itching on sensitive skin. Test a small patch first and stop if it stings.
- The formula contains almond and walnut oil, so anyone with a tree nut allergy should skip it or ask a doctor.
- Tea tree oil and camphor are toxic if swallowed. Keep the bottle away from children and pets.
- With diabetes or poor circulation, foot problems can turn serious fast. See a doctor or podiatrist before treating a nail at home, as the NIDDK guide to diabetic foot care recommends.
Everything is broken down on the Kerassentials side effects page.
Price, shipping and the refund fine print
There is no single bottle. Each bottle covers about a month at four applications a day, and the three packs work out like this:
2 bottles
- $158 total
- + $9.99 US shipping
- about $2.80 a day with shipping
3 bottles
- $207 total
- 2 + 1 free, free US shipping
- about $2.30 a day
6 bottles
- $294 total
- 3 + 3 free, free shipping, 3 e-books
- about $1.63 a day
The 3-bottle pack is the one I would pick to start. It covers 90 days, long enough to see clear new growth at the base of the nail, and it ships free in the US. The 6-bottle pack is the cheapest per bottle and comes with three e-books and a surprise gift; since a toenail needs a year or more to grow out, it is the better buy once you know the oil suits you. The crossed-out "retail" totals on the order page aren't a price anyone pays, so compare packs by the per-bottle figure.
The refund policy has a few steps:
- You have 60 days from the day your package is delivered, not from the order date.
- Email contact@kerassentials-product.com with "Refund Request" in the subject.
- Mail back all the bottles, empty or full, with the packing slip and a note with your name and email, to the Aurora, Colorado warehouse.
- You pay the return postage. The refund lands 5 to 10 days after they process it.
ClickBank also runs order support around the clock at 1-800-390-6035 and through its customer support site. The full details are on the Kerassentials price and refund page.
Pros and cons
Pros
- Undecylenic acid, an antifungal the FDA recognizes for skin use, as the listed active
- Five essential oils with antifungal research behind them, including tea tree and clove
- Menthol and camphor, the same pair studied in the VapoRub nail case series
- Brush applicator for the nail plus a cotton swab routine for the cuticle
- 60-day refund counted from the delivery date, plus ClickBank order support
- One-time payment, no subscription, free US shipping on the 3- and 6-bottle packs
Cons
- Four applications a day is a real routine to keep up
- A toenail takes 12 to 18 months to grow out, much longer than the refund window
- There is no published trial of Kerassentials itself
- The undecylenic acid is 5%, a lower strength than athlete's foot creams use
- Refunds mean mailing back every bottle at your own cost
- No single-bottle option: the smallest order is $158 plus shipping
Where to buy Kerassentials
Only on kerassentials.com. The company says it isn't sold anywhere else, and that is the only place the 60-day guarantee applies. Search results are full of lookalike sites, some with near-identical names like "karassentials" or "kerassentiails," plus marketplace listings from third-party sellers. The details are on Kerassentials on Amazon, Walmart and CVS.
Before you pay, check the address bar. A genuine order is paid on kerassent.pay.clickbank.net or orders.clickbank.net. More on spotting the real site in is Kerassentials legit.
This link goes to kerassentials.com. Checkout is handled by ClickBank.
Go to the official Kerassentials siteOur verdict
Kerassentials is one of the more thoughtfully put together nail oils sold online. It has a recognized antifungal active, five essential oils with real antifungal research, the menthol and camphor pair that did well in the VapoRub case series, and enough skin-friendly oils to keep the routine pleasant. The brush applicator and the 60-day refund from delivery make it easy to try.
What keeps it short of a perfect score is the nature of nail fungus as much as the product. There is no trial of Kerassentials itself, the active is at a modest 5%, and nails grow so slowly that you will be using it well past the refund window before you see the full result.
If you have mild to moderate discoloration or thickening on one or a few nails and you're willing to apply it four times a day, the 3-bottle pack is a fair way to start. If the infection covers most of the nail, several nails, or comes with pain, swelling or diabetes, see a dermatologist or podiatrist; prescription options, described on MedlinePlus, clear more severe cases.
Sold only on the official site, with checkout by ClickBank. 60-day refund window.
Check the current price on kerassentials.comKerassentials FAQ
Is Kerassentials FDA approved?
No. It is sold as a nail and skin care oil, and its label carries the standard line that the statements have not been evaluated by the FDA. Undecylenic acid, its listed active, is an ingredient the FDA recognizes for over-the-counter athlete's foot products.
How long does Kerassentials take to work?
The company says 9 to 12 weeks for visible results. Itching and dry skin can improve sooner, but a fully clear toenail takes 12 to 18 months because the old nail has to grow out.
How often do I apply Kerassentials?
Four times a day: twice in the morning and twice in the afternoon. Coat the nail with the brush and work the oil into the cuticle with a cotton swab.
Can I use it on fingernails?
Yes. The label covers nails and the skin around them. Fingernails grow faster, so results there tend to show sooner.
Is Kerassentials sold on Amazon or at CVS?
No. The company sells it only on kerassentials.com. Marketplace listings come from third-party sellers and are not covered by the guarantee.
Are there recurring charges?
No. Each order is a single payment with no subscription, according to the company.
How do I get a refund?
Within 60 days of delivery, email contact@kerassentials-product.com with "Refund Request" in the subject, then mail all bottles back with the packing slip. You pay return shipping.
How many bottles do I need?
One bottle lasts about a month at four applications a day. The company recommends at least the 3-bottle pack; for toenails, plan on several months of daily use.