Kerassentials Review: Is This Nail Oil Worth Trying?

Updated 2026-10-08 · Earthmend Editorial Team

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Quick verdict: Kerassentials is a daily nail oil with eight listed ingredients and a stated 60-day money-back guarantee. Some ingredients are familiar in foot care, but the blend has no published trials and its prices appear only in images.

Kerassentials has been sold online for several years and is one of the better-known nail oils in this category. Below we lay out what the official website says in its text, what public health sources say about the key ingredients, and the points the sales page leaves unclear. Our team summarizes public information; we did not test Kerassentials.

What is Kerassentials and how is Kerassentials used?

Kerassentials is a topical oil blend meant for the nails and the skin around them. According to the official FAQ, you apply Kerassentials to the nail bed once a day after a shower, when the skin is clean and the nail is a little softer.

The sales page describes Kerassentials as a natural, plant-based, non-GMO formula with no stimulants. The text names BuyGoods as the retailer.

What are the Kerassentials ingredients?

According to the official website, Kerassentials contains these eight ingredients:

1. Lavender oil
2. Organic flaxseed oil
3. Almond oil
4. Tea tree oil
5. Lemongrass oil
6. Aloe vera
7. Tocopheryl acetate (a form of vitamin E)
8. Undecylenic acid

The page also mentions "minerals," but no mineral is named in the list. No amounts are given for any ingredient.

What does the evidence say about the Kerassentials ingredients?

Undecylenic acid. U.S. over-the-counter rules (21 CFR 333.210) allow undecylenic acid as an active ingredient in athlete's foot and ringworm products at 10% to 25% total. Kerassentials does not state how much it contains, and those rules are for skin, not nails.

Tea tree oil. According to NCCIH, research on tea tree oil for nail fungus is too limited to support conclusions, though a small amount suggests possible help for athlete's foot. Tea tree oil is toxic if swallowed, so keep the bottle away from children and pets.

Lavender and lemongrass oils. These have mainly lab-dish data on fungi. NCCIH's lavender page notes that there is not enough evidence to support most health uses of lavender.

Flaxseed and almond oils, aloe vera, vitamin E. These are moisturizing and soothing ingredients common in skin care. They can make dry, ridged nails look better cared for, which is a cosmetic effect.

Why can nail oils struggle with toenail fungus?

Toenail fungus usually sits under and inside a thick nail plate. MedlinePlus says over-the-counter creams and ointments usually do not help, and that even successful treatment needs the nail to grow out, which can take up to a year. That is why prescription topicals are applied daily for about 48 weeks, according to the American Academy of Dermatology. Any oil, including Kerassentials, faces the same slow nail growth.

What does Kerassentials cost?

The Kerassentials order area offers three packages: 2 bottles, 2 + 1 bottles, and 3 + 3 bottles. Prices are shown as images and the text totals are blank, so we could not verify them. Check the current price on the official website.

Text details we could confirm:

• 2 bottles: $9.99 shipping added.
• 2 + 1 and 3 + 3 bottles: marked free shipping (with an asterisk); international orders pay extra.
• The FAQ calls the 6-bottle package the most popular, while the order area labels the 3-bottle package "most popular." This is a labeling inconsistency, not a feature.
• Three bonus guides plus an unnamed "surprise gift" are listed.

See today's Kerassentials price on the official site

Does Kerassentials have a money-back guarantee?

Yes. The official website states a 60-day, 100% money-back guarantee. The FAQ describes it as "no questions asked." Returns usually need to go through the retailer's support, so save your order number.

Is Kerassentials safe to use?

Most people tolerate plant oils on the skin, but essential oils can cause redness, itching or allergic reactions. Practical precautions:

• Patch test on a small area of skin for 24 hours.
• Do not use Kerassentials on open wounds or broken skin.
• Ask a doctor first if you are pregnant, nursing, under 18, taking medication, or living with diabetes or poor circulation.
• Skip it if you are allergic to almonds.

When should you see a doctor instead of buying Kerassentials?

See a clinician if the nail is painful, red, swollen or draining, if you have diabetes, or if more than one nail is affected. A doctor or podiatrist can confirm nail fungus with a sample and talk through prescription treatments such as terbinafine, itraconazole, efinaconazole or ciclopirox. Our treatment options guide covers how these work.

Kerassentials pros and cons

Pros

• Short, published ingredient list.
• Clear application instructions (once daily after showering).
• Stated 60-day money-back guarantee.

Cons

• No ingredient amounts.
• Prices visible only as images; package labels contradict the FAQ.
• No clinical trial of the Kerassentials formula itself.
• Urgency messages ("while stocks last") without stock figures.

How long should you give Kerassentials before judging it?

Give any nail oil, Kerassentials included, several months before deciding. Toenails grow slowly, so the useful sign is new nail at the base growing in clearer, not a change in the old nail's color. Take a photo in the same light each month. If the nail gets thicker, more painful or starts to lift, stop and book a visit with a doctor or podiatrist.

Kerassentials alternatives on this site

• KeraFirm uses a longer list with clove, manuka and camphor oils. See the Kerassentials vs KeraFirm comparison.
• NanoDefense Pro takes a different route with nano-silver and plant compounds.
• If you are unsure whether a topical or a capsule makes more sense, read nail oils vs capsules.

Go to the official Kerassentials website

Sources consulted: ecfr.gov, nccih.nih.gov, medlineplus.gov, aad.org.