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What’s the Difference Between a Dermatologist and a Skin Therapist?

Sep 15, 2025

When it comes to looking after your skin, it’s easy to feel unsure about where to turn for help. Should you book an appointment with a dermatologist, or is a skin therapist the better option? Both professionals are dedicated to improving the health and appearance of your skin, but they approach it from very different angles. Understanding these differences is important because it ensures you receive the right type of care for your specific concern whether that’s a persistent medical issue like eczema or acne, or simply a desire for a glowing, well-hydrated complexion.

Dermatologists are medical doctors who specialise in diagnosing and treating conditions that affect the skin, hair, and nails. They have years of advanced training and can prescribe medications, perform surgical procedures, and treat serious skin diseases. Skin therapists, on the other hand, focus more on the cosmetic side of skincare. They provide treatments such as facials, chemical peels, and other non-medical services designed to enhance your skin’s appearance and maintain overall skin health.

It’s also worth noting that the settings in which these professionals work can differ significantly. Dermatologists typically practise in hospitals, private clinics, or specialised dermatology centres, where they have access to diagnostic tools and medical equipment. Skin therapists usually operate in beauty salons, spas, or dedicated skincare studios, offering a relaxing environment aimed at pampering and maintenance rather than medical intervention. Understanding these environments can help set your expectations before booking an appointment.

Another key difference lies in how each professional approaches your concerns. A dermatologist will focus on identifying the root cause of a problem such as allergies, infections, or hormonal imbalances and create a treatment plan that targets the underlying condition. A skin therapist, meanwhile, concentrates on improving surface-level issues like dryness, dullness, or uneven texture, often using products and techniques that support long-term skin wellness but don’t treat medical conditions.

In this article, I’ll break down the key distinctions between these two professions covering their qualifications, areas of expertise, and the types of treatments they offer so you can feel confident about choosing the right professional for your individual skin needs. Whether you’re dealing with a medical concern or simply want to refresh your complexion, knowing who to see can save you time, money, and frustration.

What Is a Dermatologist?

A dermatologist is a fully qualified medical doctor who specialises in diagnosing, treating, and preventing conditions affecting the skin, hair, and nails. To earn this title, a dermatologist first completes a standard medical degree usually five to six years of intensive study followed by a residency or specialist training programme in dermatology that can last an additional three to four years. Many then pursue fellowships or advanced certifications in niche areas such as paediatric dermatology (focusing on infants and children), cosmetic dermatology (covering aesthetic treatments like fillers and lasers), or dermatological surgery (including skin cancer removal and reconstructive procedures). This lengthy and rigorous education equips them to handle everything from minor rashes to life-threatening diseases.

Unlike general practitioners, dermatologists are trained to see the skin as a reflection of overall health. The skin is the body’s largest organ, and changes in its appearance often signal underlying medical issues such as hormonal imbalances, autoimmune disorders, or even internal cancers. Because of this, dermatologists are often the first to detect early warning signs of systemic illnesses, which can be crucial for timely treatment.

What Dermatologists Treat

Dermatologists diagnose and manage an extensive range of conditions, both medical and cosmetic. Their work goes far beyond treating acne or recommending creams. Common areas of care include:

  • Chronic skin conditions: Such as eczema, psoriasis, rosacea, and acne, which require ongoing medical management to control flare-ups and prevent scarring.
  • Skin cancers and suspicious moles: Dermatologists perform full-body skin checks, identify potentially cancerous lesions, and carry out surgical removal or Mohs micrographic surgery when needed.
  • Infections and allergies: Including bacterial, viral, or fungal infections; allergic reactions like contact dermatitis; and autoimmune conditions such as lupus that present with skin symptoms.
  • Hair and nail disorders: Hair loss (alopecia), scalp conditions, brittle nails, and nail fungus are all within their scope of expertise.
  • Pigmentation issues: Conditions like melasma, vitiligo, or post-inflammatory hyperpigmentation that require precise medical treatment and maintenance plans.
  • Surgical procedures: Removal of cysts, warts, lipomas, and other benign or malignant growths, as well as reconstructive techniques to minimise scarring.
  • Advanced cosmetic treatments: Beyond disease management, dermatologists also perform aesthetic procedures such as chemical peels, laser resurfacing, microneedling, and injectables like Botox or dermal fillers to improve skin tone, reduce wrinkles, and treat scarring.

Why See a Dermatologist?

Dermatologists have the unique ability to combine medical science with aesthetic care, offering both health-driven treatments and appearance-enhancing solutions. They can prescribe oral and topical medications, order blood tests, perform biopsies to confirm diagnoses, and create tailored treatment plans that address the root cause of a problem rather than just its surface symptoms. This makes them indispensable for anyone experiencing persistent issues like severe acne, unexplained rashes, or moles that change in size, shape, or colour.

Because dermatologists operate in clinical settings such as hospitals, private practices, or specialised dermatology centres, they also have access to advanced diagnostic tools like dermatoscopes, patch testing, and phototherapy equipment that enable precise evaluations and highly targeted treatments. Whether you need a routine mole check or specialised care for a complex condition, a dermatologist offers evidence-based, medically regulated solutions that a skin therapist simply cannot provide.

What Is a Skin Therapist?

A skin therapist sometimes called a skincare specialist, aesthetician, or beauty therapist focuses on the cosmetic and aesthetic side of skin health. Unlike dermatologists, skin therapists are not medical doctors. Their training is vocational, typically involving certifications or diplomas in beauty therapy, aesthetics, or advanced skincare techniques rather than a medical degree. Course lengths can vary from a few months to a couple of years, and many therapists continue with specialised workshops or advanced courses to stay updated on the latest trends, products, and technologies in the skincare industry.

Skin therapists usually work in settings designed to provide a relaxing, spa-like experience, such as beauty salons, wellness spas, high-end skincare clinics, and luxury resorts. Their goal is to help clients maintain healthy-looking skin, improve its texture and radiance, and address cosmetic concerns like dullness, dehydration, or early signs of ageing. While they cannot diagnose or treat medical conditions, their hands-on treatments and personalised product advice can play a key role in supporting long-term skin health.

What Skin Therapists Do

Skin therapists offer a wide range of non-medical treatments aimed at enhancing the appearance and feel of the skin. Services commonly include:

  • Facials and exfoliation treatments: Customised facials, enzyme masks, and gentle scrubs to hydrate, brighten, or calm the skin.
  • Chemical peels: Mild to moderate peels that remove dead skin cells, smooth texture, and promote a youthful glow.
  • Microdermabrasion and microneedling: Techniques that stimulate collagen production, improve elasticity, and reduce the look of fine lines or mild scars.
  • Hair removal treatments: Waxing, threading, or laser hair reduction for smooth, hair-free skin.
  • Skincare product advice and routines: Recommending cleansers, serums, moisturisers, and sunscreens suited to specific skin types and goals.
  • Massage and relaxation therapies: Facial massage and lymphatic drainage to boost circulation and relieve tension.

Some advanced therapists may also work with cutting-edge equipment like LED light therapy, radiofrequency machines, or hydrafacial systems, but these remain cosmetic procedures and are regulated differently from medical treatments.

Why See a Skin Therapist?

Skin therapists are ideal for anyone seeking regular maintenance, pampering, or cosmetic enhancement. They can help you achieve a brighter, more hydrated complexion, smooth rough patches, or create a tailored skincare routine to complement at-home care. Their expertise is particularly valuable for individuals preparing for a special occasion, managing seasonal changes in their skin, or simply wanting to relax while improving their appearance.

However, it’s important to remember that skin therapists cannot diagnose, prescribe, or medically treat underlying skin conditions. If you have persistent acne, unexplained rashes, suspicious moles, or chronic issues like eczema or psoriasis, a dermatologist not a skin therapist is the appropriate professional to consult.

Key Differences Between Dermatologists and Skin Therapists

When weighing up the difference between a dermatologist and a skin therapist, the foundation of their training is the clearest dividing line. Dermatologists complete a full medical degree, which typically takes five to six years, followed by several additional years of intensive specialist training in dermatology. This equips them with a deep understanding of skin biology, the immune system, and how internal health issues can appear on the skin. Their medical background means they can safely prescribe medicines, perform surgical procedures, and use diagnostic tools such as biopsies or blood tests. Skin therapists, by contrast, gain their expertise through vocational or beauty-focused courses. These programmes, which can last anywhere from a few months to a couple of years, teach practical skills in skincare treatments, product knowledge, and the use of aesthetic equipment. While many therapists continue with advanced workshops and certifications, their qualifications are aimed at cosmetic care rather than medical diagnosis or treatment.

This difference in training naturally shapes the scope of care each professional offers. A dermatologist’s remit spans the full spectrum of medical and cosmetic skin concerns. They diagnose and treat chronic conditions such as eczema, psoriasis, rosacea, and severe acne, manage infections or allergic reactions, and carry out cancer screenings to detect suspicious moles or lesions. They can order lab tests, prescribe topical or oral medication, and design long-term treatment plans to address the underlying causes of disease. A skin therapist, on the other hand, focuses on the external health and appearance of the skin. Their treatments hydrating facials, resurfacing peels, microdermabrasion, microneedling, LED light therapy, or hair-removal services are designed to refresh, smooth, and maintain the skin’s surface. These services can greatly improve texture, hydration, and radiance but they do not address medical conditions or internal triggers.

The procedures and tools each can use highlight the gap even further. Dermatologists perform surgical excisions of cysts and growths, remove skin cancers using techniques like Mohs surgery, and employ advanced medical lasers or injectables such as Botox and dermal fillers to treat both medical and cosmetic issues. Skin therapists provide non-medical treatments using spa-grade equipment, focusing on comfort and relaxation as much as visible results. For example, a therapist might use a mild chemical peel to brighten a dull complexion or recommend a product routine tailored to your skin type, whereas a dermatologist could use prescription-strength retinoids or laser resurfacing to treat deep acne scarring.

Because of these distinctions, the choice between the two professionals depends on your skin needs. If you have a rash that doesn’t clear, a mole that changes shape, or persistent acne that hasn’t responded to over-the-counter treatments, a dermatologist is the right specialist to diagnose the cause and prescribe an effective, medically regulated plan. If your goals are primarily cosmetic maintaining hydration, boosting glow before an event, or enjoying regular deep-cleansing facials a skin therapist offers the expertise and treatments to keep your skin looking its best. Understanding these roles ensures you receive the right care, avoid unnecessary costs, and achieve healthier, more radiant skin in the safest way possible.

When Should You See a Dermatologist?

It’s a good idea to book an appointment with a dermatologist whenever you have a concern that goes beyond routine skincare or cosmetic maintenance. Dermatologists are medical doctors with the training and equipment to diagnose, treat, and monitor a wide range of conditions that require prescription medications, specialised procedures, or ongoing medical management. Seeing a dermatologist early can prevent minor issues from developing into more serious problems and provide peace of mind when you’re unsure about changes in your skin.

You should strongly consider visiting a dermatologist if you:

  • Notice a suspicious mole or skin lesion: Any mole or spot that changes in size, colour, or shape, becomes asymmetrical, develops irregular borders, or starts bleeding or itching should be examined promptly. Early detection of skin cancer, including melanoma, significantly increases the chances of successful treatment.
  • Struggle with long-term skin conditions: Chronic concerns such as acne, eczema, psoriasis, rosacea, or severe dandruff often require prescription-strength treatments or advanced therapies to control flare-ups and prevent scarring or infection.
  • Experience painful, recurring, or unexplained skin problems: Rashes that appear suddenly, hives that don’t respond to antihistamines, painful boils, or recurring infections may point to allergies, autoimmune issues, or other internal conditions that need medical investigation.
  • Need advanced medical or surgical care: Procedures like mole removal, biopsies, cryotherapy (freezing of growths), laser therapy, or injectable treatments such as Botox for excessive sweating must be performed by a licensed dermatologist for safety and effectiveness.
  • Have stubborn hair or nail issues: Unexplained hair loss (alopecia), brittle nails, or nail discolouration can signal hormonal imbalances, thyroid problems, or fungal infections that require medical testing and prescription solutions.
  • Want expert advice on skin changes with age: Dermatologists can provide medically backed guidance on managing pigmentation, deep wrinkles, or other age-related changes using prescription retinoids, chemical peels, or professional-grade laser treatments.

Even if a concern seems minor like a persistent pimple that doesn’t heal or a rough patch of skin that keeps coming back it’s worth getting a professional opinion. Dermatologists are trained to spot early warning signs of systemic diseases such as lupus, diabetes, or thyroid disorders, which sometimes reveal themselves first on the skin. A timely consultation not only helps resolve visible issues but can also safeguard your overall health by catching underlying conditions before they progress.

When Is a Skin Therapist Enough?

A skin therapist is the right choice when your main goals are cosmetic improvement, relaxation, or preventative maintenance rather than medical treatment. Their training in aesthetics and beauty therapy allows them to provide treatments that enhance the look and feel of your skin, support at-home routines, and help you maintain a healthy glow without the need for prescriptions or medical interventions.

You might book a session with a skin therapist if you:

  • Want to improve skin appearance or texture: Therapists can perform facials, mild chemical peels, microdermabrasion, or microneedling to smooth roughness, reduce the look of fine lines, brighten dull complexions, or improve mild scarring.
  • Are looking for relaxation-focused treatments: Spa-style facials, massage-based treatments, and calming masks provide a pampering experience that reduces stress while boosting circulation and hydration.
  • Need advice on non-prescription skincare products: Skin therapists are trained to assess your skin type and recommend cleansers, moisturisers, serums, and sunscreens that suit your needs, helping you build an effective daily routine.
  • Would like aesthetic treatments without medical intervention: Non-medical services such as LED light therapy, hydrafacials, hair removal (waxing, threading, or non-medical laser), and gentle resurfacing treatments can refresh your skin and keep it looking vibrant between dermatologist visits.

A skin therapist is also a great option for seasonal maintenance for example, to counteract dryness in winter or excess oiliness in summer or for preparing your skin before a special occasion like a wedding or holiday. Their focus on prevention and surface care means they can help you maintain results after seeing a dermatologist, offering follow-up treatments that keep your skin smooth and well-hydrated.

However, it’s important to understand their limits. A skin therapist cannot diagnose medical conditions, prescribe medication, or treat serious issues such as severe acne, unexplained rashes, or suspicious moles. If you experience symptoms that suggest an underlying medical problem, you should always seek evaluation from a dermatologist first. By combining regular visits to a skin therapist with occasional check-ups from a dermatologist, you can create a balanced skincare routine that supports both long-term health and everyday radiance.

Final Thought: Choosing the Right Professional for Your Skin

Both dermatologists and skin therapists are valuable, but they serve very different purposes. If you’re dealing with a medical skin condition, you’ll need the expertise of a trained doctor. For cosmetic improvements or routine skin maintenance, a skin therapist can provide great results.

If you’re unsure which option is right for you, booking a consultation with an experienced Dermatologist in London at The London Dermatology Centre is the safest way forward. That way, you can get expert advice tailored to your needs.

References:

  1. American Academy of Dermatology (AAD) (2024) What is a dermatologist? AAD.
  2. Shumate, J. & Schmelzer, K. (2020) Dermatologists and primary care physicians: A comparative analysis of training and practice. JAMA Dermatology, 156(4), pp.451–457
  3. Hay, R.J., Johns, N.E., Williams, H.C. et al. (2014) The global burden of skin disease in 2010: An analysis of the Global Burden of Disease Study 2010. PLoS One, 9(4), e96187.
  4. Dellavalle, R.P., Hester, E.J. & Taylor, S.C. (2018) Advancements in dermatology: An update on practice and education. Dermatologic Clinics, 36(3), pp.297–305.
  5. Sadick, N.S. (2009) Aesthetic dermatology: Past, present, and future. Dermatologic Clinics, 27(2), pp.123–128.