Eskata

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Eskata

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Medically reviewed

Rosario Oropesa

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Eskata

Eskata is a specialized topical solution used in a clinical setting to address certain raised skin growths.

Property Description
Active ingredient Hydrogen Peroxide (H2O2)
Form Topical solution (high-concentration)
Pharmacological Class Oxidizing Agent / Dermatologic Agent
Route of Administration Topical (Professional application only)
Origin Synthetic

Defining Eskata: A Topical Dermatologic Agent

Eskata is formally defined as a prescription-only (Rx) medication, which means its administration is restricted to a healthcare provider during an in-office treatment session. This necessity for professional application distinguishes it from widely available, diluted over-the-counter solutions. The product is categorized as a dermatologic agent, confirming its role in treating localized skin conditions. The FDA approval of Eskata established it as a dedicated, non-surgical topical treatment for a specific type of benign raised skin growth.


Composition: High-Concentration Hydrogen Peroxide

The active component in Eskata is Hydrogen Peroxide (H2O2), a synthetic chemical entity presented in a specialized, highly stabilized concentration of 40% w/w in an aqueous solution. This pharmaceutical strength is crucial for its intended efficacy. The medicine functions as an oxidizing agent, a class of chemicals whose properties are clinically recognized for their ability to induce rapid, controlled chemical changes in tissue. The final preparation is supplied as a clear, colorless topical solution in a unit-dose applicator, emphasizing the need for targeted and precise professional use.


General Therapeutic Purpose

Eskata’s general purpose is to achieve the localized clearance or removal of the target skin growths. The underlying mechanism involves the potent chemical property of the oxidizing agent to induce rapid, focused oxidative damage to the abnormal cells within the lesion. This chemical process is designed to destroy the cellular structure, allowing the treated lesion to naturally slough away from the healthy surrounding tissue over time. This approach provides a non-invasive means of resolving the growth without the invasiveness typically associated with physical removal methods.

What side effects are possible with Eskata?

The safety profile of Eskata, a high-concentration topical solution, is derived from regulatory classifications based on clinical trial data and is characterized by expected local skin reactions and critical warnings regarding ocular safety.

Frequency-Classified Adverse Reactions

The most frequently observed adverse reactions, classified as Common in regulatory documentation (incidence ge 4%), are local reactions occurring at the application site. These include erythema (redness), stinging, edema (swelling), scaling, crusting, and pruritus (itching). Less common reactions (incidence ge 0.5% and < 4%) include hypopigmentation, erosion, ulceration, atrophy, scarring, and Herpes Zoster.

System-Organ-Class and Serious Events

The safety events are predominantly grouped under Skin and Subcutaneous Tissue Disorders. Severe reactions documented in the official labeling include deep ulcerations and scarring at the application site. The regulatory documentation also highlights Eye Disorders, as accidental contact with the solution can cause severe injury, including corneal erosion, ulceration, scarring, and permanent eye injury.

Safety Constraints and Time Patterns

The official labeling stipulates that the solution must not be applied to the eyes or mucous membranes. Reactions follow a documented time-course: immediate effects like stinging and edema are common within 10 minutes of application, while mid-term effects like scaling and crusting are common around one week post-treatment. Longer-term effects, such as hyperpigmentation and hypopigmentation, have been observed at 15 weeks. Regarding specific populations, no overall differences in safety were observed in subjects aged 65 and older compared to younger subjects.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for Eskata addresses overdose in the context of acute local toxicity resulting from topical misuse or accidental exposure. The severity of overdose is classified based on the potential for severe local and ocular outcomes.

Topical overdosing is formally documented to result in an increased incidence and severity of local skin reactions, which may include erosion, ulceration, vesiculation, and scarring. For severe dermal reactions, the official guidance states that re-treatment must be deferred until the affected skin area has fully recovered. Management is focused on general symptomatic and supportive treatment.

When to Seek Immediate Medical Help

The most critical documented scenario is accidental direct contact with the eye. This exposure is classified as a severe risk, carrying the potential for corneal injury and permanent eye injury, including blindness. If accidental eye exposure occurs, it is required to flush the affected eyes with water for 15 to 30 minutes. Authorities mandate that medical personnel must immediately initiate monitoring, and further evaluation as appropriate due to the risk of severe, permanent outcomes.

Population Notes: Regulatory data indicates no overall differences in safety between geriatric subjects (ge 65 years) and younger subjects. The product is not studied in the pediatric population.

Therapeutic Uses of Eskata

Main Uses and Benefits of Eskata

Eskata is a topical solution specifically designed for the treatment of raised seborrheic keratoses. These common non-cancerous skin growths often appear as waxy, scaly, or thickened patches on the skin surface.

Targeted Treatment of Seborrheic Keratoses

The primary use of Eskata is to address the aesthetic and physical presence of seborrheic keratoses (SKs). While these growths are benign and do not pose a health risk, they are often treated for various reasons:

  • Skin Texture Improvement: Treatment can help smooth the skin by reducing the elevation of raised lesions.
  • Appearance: Many individuals seek treatment to address the dark, "stuck-on" appearance of SKs, especially when they occur on visible areas such as the face, neck, or décolletage.
  • Reduced Irritation: Raised growths can sometimes become caught on clothing or jewelry; removing them can eliminate this source of physical discomfort.

Mechanism and Patient Benefits

Eskata offers a localized approach to managing skin growths through a high-concentration application. The benefits for patients include:

  • Non-Invasive Approach: As a topical application, it provides an alternative to physical destruction methods like cryosurgery (freezing) or electrosurgery (burning).
  • Precision: The design of the applicator allows for targeted delivery of the solution directly to the lesion, minimizing contact with the surrounding healthy skin.
  • Suitability for Multiple Lesions: The treatment can be applied to several seborrheic keratoses during a single clinical visit, allowing for the management of multiple growths across different areas of the body.

Eligibility and Restrictions for Use

Official Eligibility Profile: Who Can and Cannot Use Eskata

Eligibility for Eskata (hydrogen peroxide topical solution, 40%) is strictly defined by regulatory labeling based on the patient population and the condition of the lesion.

Category Regulatory Status
Indicated Population Adults with raised seborrheic keratoses (SKs).
Formal Contraindications None are listed in the official Prescribing Information.
Pediatric Use Safety and efficacy are not established in the pediatric population.
Pregnancy/Lactation Use is not expected to result in fetal or infant exposure due to the drug’s lack of systemic absorption following topical administration.

Eligibility-Related Restrictions (Non-Eligibility)

The medicine must not be applied to certain types of skin conditions or areas:

  • Open or infected seborrheic keratoses.
  • Lesions that are not raised.
  • Eyes, mucous membranes, or lesions within the orbital rim (to prevent serious eye injury).
  • Areas that have not recovered from a prior treatment or severe local reaction.

Eskata's eligibility is determined primarily by the localized condition of the skin rather than the patient's systemic health, as the drug is not absorbed systemically.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official Regulatory Profile

The interaction profile for Eskata (40% Hydrogen Peroxide Topical Solution) is defined by its targeted, non-systemic route of administration, as documented in official regulatory labeling. Eskata is applied professionally to the skin, and the active ingredient, Hydrogen Peroxide, is not absorbed systemically in measurable amounts following this topical use. This finding eliminates the primary basis for clinically relevant systemic pharmacokinetic interactions.

Interaction Category Officially Documented Status
Formal Contraindications None documented.
Metabolic (CYP) Interactions None documented.
Food, Alcohol, Supplements No formal interactions documented.
Timing Requirements No mandatory separation rules for co-administered medicines.

Consequently, the official prescribing information does not contain warnings regarding interactions with other systemic medicinal products, including those that typically interact via metabolic pathways (such as CYP enzymes) or drug transporters. There are no official prohibitions against co-administering Eskata with other prescription or non-prescription substances, and no specific instructions are provided concerning the intake of food, alcohol, or herbal products related to the treatment.

Mechanism of Action

How Eskata Works: Pharmacodynamic Mechanism

Eskata’s action is defined by chemically induced tissue destruction, representing a non-receptor-mediated mechanism. The active component, high-concentration Hydrogen Peroxide ( H2 O2), functions as a direct oxidizing agent. When topically applied, this supraphysiologic concentration rapidly generates Reactive Oxygen Species (ROS), primarily the hydroxyl radical (cdot OH), within the targeted epidermal cells.

This rapid generation of ROS exceeds the capacity of local cellular defense systems (antioxidant enzymes), leading to an imbalance that causes oxidative damage. The primary biological targets are cellular macromolecules, including lipids, proteins, and nucleic acids ( DNA), resulting in irreversible structural impairment. This molecular destruction initiates a cellular death pathway—necrosis and apoptosis—in the abnormal cell population. The physiological consequence of this damage is the formation of a non-viable tissue mass, which subsequently undergoes separation or sloughing from the adjacent healthy dermal layer. The mechanism is constrained by the necessity of adequate solution penetration across the lesion's outermost layer.

Dosage and Administration Information

Instruction Map: How to use Eskata — Official Administration Guidelines

Eskata (hydrogen peroxide, 40% w/w topical solution) is a prescription medicine intended for administration only by a healthcare provider in an in-office setting. The instructions for its use follow a precise, structured protocol.


Administration Scope

Feature Guideline
Route of Administration Topical application only. Must not be administered orally, ophthalmically (eye), or intravaginally.
Dosing Schedule A single treatment session includes four distinct applications to the lesion(s). The dose is the amount required to uniformly wet the lesion surface, including the edges, without any excess running or dripping.
Preparation Requirements Prior to use, the seborrheic keratosis lesion surface must be cleared of oil and debris, often using an alcohol wipe. The solution must not be applied to lesions that are open or infected.
Age-Group Administration Older Adults (65 years or older): No dosage adjustment is explicitly indicated. Pediatric Patients: Safety and effectiveness have not been established.

Resulting Procedural Structure

The treatment session follows a fixed, short-interval sequence for each lesion:

  • Intra-session Frequency: The four applications are given approximately 1 minute apart. The sequence should be discontinued if the patient experiences severe erythema, edema, or pain after any application.
  • Post-use: The single-use unit-dose applicator must be discarded after the final application.
  • Retreatment: Another treatment may be administered approximately 3 weeks after the initial session only if the treated lesions have not completely cleared and the skin has recovered from any reaction caused by the prior treatment.

Recent Clinical Evidence

Eskata: Recent Clinical Evidence

Eskata (hydrogen peroxide topical solution, 40%) is a medication applied by a healthcare provider for the treatment of raised seborrheic keratoses (SKs) in adults. The clinical evidence supporting its use primarily comes from two identical, randomized, double-blind, vehicle-controlled Phase 3 trials (SEBK-301 and SEBK-302).

Clinical Trial Outcomes

These pivotal trials included over 900 adult participants with four raised SK lesions each, with at least one lesion located on the face and one on the trunk or extremities. Participants received up to two treatments with either the Eskata solution or a vehicle (placebo) three weeks apart, as needed.

Outcome Measured Eskata Group (N) Vehicle Group (N)
Complete Clearance of All Four SKs 4% to 8% 0%
Clearance of Three or More SKs 13% to 23% 0%

Complete clearance was assessed by the Physician’s Lesion Assessment (PLA) scale approximately 106 days after the initial treatment. Analyses suggested that lesions treated on the face demonstrated higher clearance rates compared to those on the trunk or extremities.

Safety and Tolerability

The most commonly reported adverse events were local skin reactions occurring at the application site, including erythema (redness), stinging, edema (swelling), scaling, and crusting. In the clinical trials, a small percentage of patients experienced scarring (3%) in the treated area.

Frequently Asked Questions (FAQ)

Common questions about Eskata (FAQ)

Q: Is Eskata a type of acid or a different kind of medicine?

Eskata is formally classified as a dermatologic agent whose active ingredient, hydrogen peroxide, functions as an oxidizing agent. Its pharmacological activity is defined by the generation of Reactive Oxygen Species (ROS), which leads to the targeted cellular damage described in official documents. It is therefore not chemically classified as an acid.

Q: What is the typical experience during and right after the treatment?

According to official product information, local reactions such as stinging or burning and visible signs like redness (erythema) and swelling (edema) are frequently observed during the application process. The provider monitors these effects during the short intervals between applications.

Q: Do I need to change my skincare routine before using Eskata?

Official administration guidelines describe the necessary preparation, which includes the healthcare provider clearing the lesion surface of oil and debris, often using an alcohol wipe, immediately before the treatment. The regulatory label does not include any specific instructions regarding general skincare routine changes leading up to the procedure.

Q: How long does the tingling or discomfort last after the session is over?

The most common immediate effects, such as stinging and swelling, are typically observed in the minutes immediately following the application. Other frequently observed skin reactions, such as scaling and crusting, are typically noted around one week following the treatment session.

Q: Is Eskata considered a cosmetic treatment?

Eskata is a prescription medicine that received regulatory approval for the treatment of raised seborrheic keratoses (SKs), which are benign lesions. The official labeling defines the drug by its medical indication for this condition.

Q: Do the official studies cover long-term outcomes of the treatment?

The pivotal clinical trials assessed the main outcome of complete clearance approximately 106 days after the initial treatment. Local skin reactions were officially monitored for up to 15 weeks after the initial session. The clinical trials measured outcomes within these specified timeframes.

Q: What are the signs that a spot is reacting properly to Eskata?

Administration documents state that whitening of the lesion may occur and is monitored by the provider during application. Following treatment, common documented reactions include redness, swelling, scaling, and crusting.

Q: Is it true that patients with a history of cold sores cannot use Eskata?

Regulatory documents list Herpes Zoster (shingles) as a less common adverse reaction observed in clinical trials. However, a history of Herpes Simplex (cold sores) is not listed as a formal restriction or contraindication in the official eligibility criteria.

Q: Can Eskata be used on all skin tones and types?

Regulatory documents do not specify limitations on use based on skin tone or type. However, official safety data indicates that local adverse reactions observed included changes in skin color, specifically hyperpigmentation (darkening) and hypopigmentation (lightening).

Q: How long is the applicator brush meant to be in contact with the lesion?

The administration instruction describes the need to apply the solution to uniformly wet the entire surface of the lesion, including the edges, while avoiding excess running or dripping. The protocol involves four applications repeated approximately one minute apart.

Q: Why might a healthcare provider choose Eskata over other options?

Eskata is described in regulatory information as the first and only FDA-approved topical solution for the non-invasive treatment of raised seborrheic keratoses. This approach is described as a non-invasive, topical method, which is distinct from physical removal methods.

Q: What is the ingredient that makes Eskata a solution?

The active component, hydrogen peroxide, is present in an aqueous solution, meaning water is the primary solvent. The full composition and a complete list of inactive ingredients (excipients) can be found in the regulatory description for the product.

Q: Is Eskata used by dermatologists or general practitioners?

The drug must be administered only by a healthcare provider in an in-office setting because it is a high-concentration prescription medicine. The official regulatory label does not restrict administration to a specific medical specialty.

Q: What happens if Eskata gets on the healthy skin around the spot?

The administration protocol instructs the healthcare provider to minimize the drug's contact with the surrounding healthy skin. If excess solution is present on the surrounding area, the protocol instructs the provider to remove it immediately with a clean absorbent wipe.

Q: Does the treatment require any kind of anesthesia or numbing cream?

The official administration instructions for the procedure are detailed and do not mention the use of local anesthesia or numbing agents as part of the standard protocol. The treatment is known to involve a stinging sensation.

Q: Does Eskata have a black box warning?

The official FDA Prescribing Information for Eskata does not include a Boxed Warning, which is often referred to as a 'Black Box Warning.' The product does, however, carry important warnings regarding the risk of serious eye injury.

How should Eskata be stored and disposed of?

Storage and Disposal of Eskata

The storage and disposal of Eskata (hydrogen peroxide) topical solution, 40% (w/w), must strictly follow official regulatory requirements.


Storage Requirements

Eskata must be stored at controlled room temperature, specifically between 20 to 25 C (68 to 77 F). Permitted temperature excursions are allowed between 15 to 30 C (59 to 86 F). As with all medicines, the product must be kept out of the sight and reach of children.

Disposal and Handling

Eskata is supplied in a unit dose applicator intended for a single, in-office treatment session only. The regulatory labeling mandates strict stability and disposal rules: after one use, the cap must be replaced and the entire unit dose applicator must be discarded. Healthcare providers are instructed to wear gloves during handling and administration.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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