The Benefits of Pine Tar Soap for Skin
Last Updated: October 26, 2026
Quick Summary
Pine tar soap cleanses itchy, irritated skin and can reduce irritation for people whose skin reacts to synthetic detergents, fragrance or preservatives. It has a mild scale-softening effect and a long traditional use history, but it is not a treatment for eczema, psoriasis or infections. Use it gently, two to four times a week, and moisturise afterwards.
- Pine tar soap is a traditional bar cleanser made with pine tar, a resinous substance from heated pine wood.
- Clinical trial evidence that a pine tar soap delivers antibacterial or antifungal effects on skin is limited.
- Patch-test on your inner forearm for 48 hours before using the bar more widely.
- Keep lather contact time to 20 to 30 seconds and rinse thoroughly to prevent irritation.
- Coal tar is stronger and more clinically studied; pine tar is the gentler, cosmetic option.
Table of Contents
- What Pine Tar Soap Actually Does for Your Skin
- Pine Tar Soap for Itchy Skin, Eczema and Psoriasis
- Antibacterial, Antifungal and Anti-Inflammatory Claims Examined
- Using Pine Tar Soap for Face and Sensitive Skin
- Pine Tar Soap Side Effects and Who Should Avoid It
- Pine Tar Soap vs Coal Tar Soap
- How to Use Pine Tar Soap: A Step-by-Step Routine
- Choosing a Pine Tar Bar That Suits Your Skin
- Frequently Asked Questions
What Pine Tar Soap Actually Does for Your Skin
Pine tar soap is a traditional bar cleanser made with pine tar, a dark, resinous substance produced when pine wood is heated in a closed kiln. At Mucky Vagrant Soapery LTD, we make our pine tar bars by hand in small batches, using authentic Stockholm pine tar for its smoky scent and long-standing role in skin cleansing. People reach for it mainly for one reason: itchy, irritated skin that ordinary soap seems to aggravate.
What Is in a Bar of Pine Tar Soap
A traditional pine tar bar contains three core components: a soap base, pine tar itself, and usually a soothing additive such as oatmeal. The soap base is often made with tallow or lard for a hard, long-lasting bar, though vegan versions use plant oils instead. Pine tar typically makes up a small fraction of the recipe, enough to colour the bar dark brown and give it that campfire aroma. Our own high-grit bar pairs Stockholm pine tar with lard, shea butter, walnut shell powder for scrubbing, and colloidal oatmeal.
Pine Tar Soap for Itchy Skin, Eczema and Psoriasis
Pine tar soap for itchy skin is the use case with the longest history. The tar contains natural compounds that many people find soothing on irritated, flaky patches, and the bar's gentle cleansing action removes the oils and debris that can worsen itching. That said, it is not a treatment. Eczema and psoriasis are medical conditions, and a soap can support comfort but cannot clear a flare-up.
Antibacterial, Antifungal and Anti-Inflammatory Claims Examined
Most pine tar soap articles either repeat the antimicrobial claims as fact or dismiss them outright.
What pine tar actually is. Pine tar is a complex mixture produced by the destructive distillation of pine wood.
Separate three things. When you read a claim, ask which of these it is:
- Traditional use, pine tar has been used for centuries on skin, hair and hooves. This tells you it has a long safety-in-use history, not that it works for a specific condition.
- In vitro evidence, laboratory studies showing pine tar compounds inhibit certain bacteria or fungi in a dish. Useful for understanding mechanism, but a dish is not skin, and a wash-off bar has seconds of contact time.
- Clinical evidence, controlled trials in people with a diagnosed condition. This is what regulators and clinicians rely on, and for pine tar soap specifically it is limited.
What the bar reliably does. A well-made pine tar bar cleanses effectively without synthetic detergents, fragrance or preservatives.
What it does not do. It is not a substitute for an antibacterial or antifungal medicine.
How to judge a product's claims. Look at where pine tar sits in the ingredient list (ingredients are listed in descending order of concentration, with anything present at 1% or less able to appear after the fragrance listing). A bar that lists pine tar near the end is unlikely to deliver much of anything. Be sceptical of any cosmetic soap that claims to 'treat' eczema, psoriasis or an infection, under UK cosmetic rules, a product making medicinal claims is a medicine and should be licensed as one. A genuine cosmetic bar should talk about cleansing and comfort, not cures.
Using Pine Tar Soap for Face and Sensitive Skin
Pine tar soap for face use needs caution. Facial skin is thinner and more reactive than the body, so a strong tar bar can leave it tight or red if used daily. Many people with sensitive skin find a gentler routine works better overall; our guide to a natural skincare routine for sensitive skin walks through building one around a solid bar without over-cleansing.
Pine Tar Soap Side Effects and Who Should Avoid It
Pine tar soap is generally well tolerated, but 'natural' does not mean 'reaction-free'. Pine tar is a complex mixture and a recognised potential sensitiser, so a sensible approach up front saves a lot of discomfort later.
The two reactions to tell apart.
- Irritation is the common one: dryness, tightness, stinging or mild redness, usually where the lather sat or where skin was already dry. It tends to build with frequency and contact time, and it settles once you stop or cut back.
- Allergic contact dermatitis is less common but more serious: an itchy, bumpy or weeping rash that can spread beyond where you washed, sometimes appearing a day or two after contact. It can worsen with each exposure. If this pattern appears, stop using the bar and speak to a pharmacist.
Patch-test before you commit. Before using the bar on your body or face:
HIGH-GRIT PINE TAR SOAP (125G) →
- Wash and dry a small patch of inner forearm.
- Lather a little soap there and rinse after 30 seconds.
- Leave the area alone for 48 hours and check for redness, itching or bumps.
- If clear, repeat once more before using it more widely.
A patch test will not catch every reaction, but it catches most straightforward ones.
Who should avoid it entirely.
- Anyone with a known pine, colophony (rosin) or resin allergy, these are related and cross-reactivity is possible.
- People with broken, cracked, weeping or infected skin.
- Infants and very young children, whose skin barrier is thinner and more permeable.
Practical rules that prevent most problems.
- Keep contact time short, 20 to 30 seconds of lather is plenty; do not leave it on like a mask.
- Rinse thoroughly; residue left in skin folds is a common cause of irritation.
- Start at two to three uses a week and build up only if your skin stays comfortable.
If your skin is reactive in general, it is worth building a routine around a gentler bar first.
Pine Tar Soap vs Coal Tar Soap
Pine tar soap and coal tar soap are cousins, not twins. Coal tar comes from coal processing and is the ingredient found in medicated shampoos and creams prescribed for psoriasis and dermatitis. It is stronger, more clinically studied, and carries a more medicinal smell. Pine tar comes from pine wood and sits in the traditional, cosmetic camp: gentler, better smelling, and used for general cleansing and comfort rather than treatment.
How to Use Pine Tar Soap: A Step-by-Step Routine
A good routine gets more from the bar and protects your skin. Follow these steps:
- Wet your skin with lukewarm water, not hot.
- Lather the bar in your hands or on a cloth.
- Massage the lather over your skin gently for 20-30 seconds.
- Rinse thoroughly until no residue remains.
- Pat dry with a clean towel rather than rubbing.
- Moisturise within a few minutes while skin is still damp.
- Use two to four times a week to start, adjusting as your skin responds.
- Store the bar on a draining dish between uses so it lasts.
A hard, well-cured bar lasts far longer than a soft one, and how you store it matters as much as the recipe.
Choosing a Pine Tar Bar That Suits Your Skin
Read the ingredients before you buy. A good pine tar bar lists pine tar high enough to matter, a base you are comfortable with (tallow, lard, or plant oils), and soothing extras like oatmeal or shea butter. If you are ready to pick one, our HIGH-GRIT PINE TAR SOAP (125G) is a 125g cold-process bar made with Stockholm pine tar, lard, shea butter, and colloidal oatmeal, priced at £5.00.
| Bar Feature | Best For | Watch Out For |
|---|---|---|
| Plain pine tar bar | Daily body washing, sensitive skin | Can still dry skin with overuse |
| Pine tar with oatmeal | Itchy, flaky patches | Check oatmeal is genuinely included |
| High-grit pine tar bar | Hands, feet, workshop grime | Too abrasive for face or broken skin |
| Vegan plant-oil base | Avoiding animal fats | Lather may feel less creamy |
Frequently Asked Questions
Is pine tar soap anti-fungal?
Pine tar has a long folk reputation as an antifungal, and some small studies suggest tar preparations can slow the growth of certain fungi. That is not the same as a proven treatment for a fungal infection. If you have a suspected ringworm, athlete's foot or nail infection, a pine tar soap may soothe the surrounding itching but it will not clear the infection. See a pharmacist or GP for a proper diagnosis and treatment.
Can pine tar soap help with itchy skin?
Many people find pine tar soap for itchy skin genuinely calming. It works best on surface itchiness linked to dryness, flaking or mild flare-ups. If itching is severe, spreading, or comes with swelling or weeping, stop using it and get medical advice.
Is pine tar soap suitable for your face?
Pine tar soap for face use is possible but should be cautious. Facial skin is thinner and more reactive than the body, so start with one wash a week and watch for redness or tightness. Avoid the eye area, and follow with a fragrance-free moisturiser. If you have rosacea, active acne or very sensitive skin, patch test on the jawline first.
How often should you use pine tar soap?
Two to three washes a week suits most people, with a milder bar on the other days. Daily use is fine for resilient, oily or workshop-hardened skin, but dry or sensitive skin does better on an alternating schedule. Watch how your skin feels after each wash: tightness, stinging or new redness means you should cut back rather than push through.
Can pine tar soap cause skin irritation?
Yes. Pine tar soap side effects include contact irritation, especially in people with sensitive skin. Patch test on the inner forearm for 24 hours before full use. Stop if you notice burning, a rash that spreads, or blistering. Anyone with a known tar allergy or open wounds should avoid it.
What is the difference between pine tar soap and coal tar soap?
Pine tar comes from burning pine wood, while coal tar is a by-product of coal processing and is the ingredient used in regulated medicated shampoos and ointments. Pine tar soap is sold as a cosmetic cleansing bar, not a medicine, so it makes no clinical claims. Coal tar is stronger and more clinically studied but stains and smells more heavily. Choose pine tar for a traditional wash; choose coal tar products under medical guidance for diagnosed scalp conditions.
Most pine tar bars on the shelf are vague about what is actually inside them. We would rather you knew. At Mucky Vagrant Soapery LTD, every bar is handcrafted in small batches with authentic Stockholm pine tar, traditional lard and shea butter, and colloidal oatmeal for comfort, and our high-grit 125g bar adds walnut shell powder for a serious scrub. Get started with Mucky Vagrant Soapery LTD and give hard-working skin the traditional wash it deserves.
