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Quassia (Picrasma excelsa)
Supports digestive well-being with the potent bitter essence of Quassia, nature's traditional tonic for vitality and gut harmony.

Quassia Tincture from Picrasma excelsa delivers the gentle power of a traditional bitter tonic to support digestive well-being and maintain natural appetite balance. Embrace its quassinoid-rich essence for promoting liver comfort and gut harmony. Welcome this inviting herbal extract into your wellness routine for enduring vitality.

Botanical Name: Picrasma excelsa
Common Names: Quassia, Jamaican Quassia, Bitter-wood
Plant Part: Bark
Tincture Ratio: 1:3
Alcohol Volume: 45%

Price range: £15.95 through £26.95

Adults: Shake bottle well before use. Take 10-30 drops in a little water, juice or tea, 1-3 times daily or as recommended by a qualified practitioner. If sensitive start on low dose and slowly build up. Best taken between meals.

Incorporate into your daily routine to gain best results. The benefits of herbs are most effective when used consistently over time.

Picrasma excelsa extracted in ethanol alcohol and water. Plant part used is the bark. Strength is 1:3 45% – 1 part plant to 3 part liquid.

Picrasma excelsa is rich in quassinoids like quassin and neoquassin, which impart its characteristic bitterness. Traditional ethnobotanical use as a tonic aligns with research highlighting its role in bitter receptor stimulation, supporting enzymatic digestion and natural gut balance.

What customers are saying

Sarah M

I ordered the parasite formula (herbal tincture) from Clinic Naturae as part of a health reset programme. The instructions were straightforward, and the taste was manageable for a tincture. I combined it with dietary changes. I felt some gastrointestinal improvement and better overall well-being after four weeks. I’m not claiming miracles, but I appreciate the natural medicine approach and will continue using it as part of my maintenance routine.

Raj K

With longstanding joint ache (knees and hips) I tried the dried herbs & teas from Clinic Naturae aimed at muscles & joints. I’ve steeped the tea daily for a month. It hasn’t eliminated the discomfort entirely, but I’m noticing that the stiffness in the mornings is less severe and shorter in duration. Good value for what it offers, and the staff answered my questions before I bought.

Louise T

I suffer from restless nights and often wake feeling unrefreshed; a friend recommended Clinic Naturae’s herbal oil blend for nervous system support. I’ve been using it consistently for three weeks now. Although I still wake once or twice, I fall asleep faster, and my morning brain fog has eased. I appreciate the transparent ingredient list and that it’s a simple, plant-based solution.

Michael S

After spraining my ankle, I applied the Comfrey Cream from Clinic Naturae twice a day as directed, and I’m genuinely impressed. The cream has a nice texture (not greasy), the scent is mild and natural, and I found the swelling reduced much quicker than I expected. It didn’t replace physiotherapy, but it complemented my rehab nicely. A trustworthy natural product.

Emma P

I’ve been using the liver formula tincture from Clinic Naturae for about eight weeks now – I selected it because I was experiencing sluggish digestion and fatigue after work. The herbal blend is gentle but effective: I noticed my energy levels pick up, and I’ve had fewer digestive aches. The delivery was quick, and the bottle comes with clear dosage instructions. My skin even looks a bit brighter. Will definitely reorder.

Quassia Tincture: Embrace the Bitter Power of Picrasma excelsa

Discover the revered Jamaican Quassia, derived from the noble Picrasma excelsa tree, a cornerstone of Caribbean herbal heritage now crafted into our premium UK tincture. Renowned for its intense bitterness, this potent herbal extract supports digestive comfort and maintains natural equilibrium. Ideal for those embracing holistic wellness, our Quassia tincture delivers time-tested support in a convenient, alcohol-based form, supporting your journey to balanced vitality without synthetic additives.

Quality Certified

Slowcrafted in small batches

Laboratory Test for Purity & Potency

Sustainably Sourced

Frequently asked questions

Is this the right herb for me?

How long until I notice results?

Can I take Quassia with other supplements or medications?

How do I store Quassia tincture?

Folklore, Tradition & Etymology

Nestled in the sun-drenched hills of Jamaica, Picrasma excelsa, known as Quassia or Bitter-wood, carries a legacy whispered through Caribbean lore. Its name honours Graman Quassi, the 18th-century Surinamese healer enslaved in the Americas, who revealed its potent secrets to European botanists. Indigenous peoples of the West Indies revered this 'tree of bitterness' for traditions surrounding fevers, parasites, and digestive well-being, brewing its wood into tonics that 'cleansed the inner fires'. In Jamaican herbal traditions, it was the go-to elixir for slack appetites and liver equilibrium, embodying nature's stern yet benevolent command to awaken vitality. This timeless bitter guardian bridges ancient wisdom and modern herbal craft.

A Heritage of Well-being

From the resilient heartwood of Jamaica's noble Picrasma excelsa tree emerges Quassia tincture, a bridge between Caribbean herbal heritage and UK wellness traditions. For generations, island healers harnessed its quassinoid-rich bitterness to support digestion, maintain intestinal balance, and promote liver well-being practices echoed in ethnobotanical texts and now refined into our alcohol extract. Ethically wildcrafted and bottled to UK standards, this tincture invites you to partake in a lineage of holistic harmony, supporting appetite before meals and fostering gut-liver equilibrium for enduring vitality.

Free Delivery Over £50

Enjoy complimentary UK shipping when you spend £50 or more.

Natural Ingredients

Made with pure, plant-based oils and herbs for effective, gentle care.

Made in the UK

Carefully blended in small batches to ensure freshness and quality.

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Not all herbs are suitable for children, if pregnant or breastfeeding, taking prescribed medication or living with a medical condition, please consult us or a qualified herbalist or healthcare professional before use. Avoid if you have known allergies to any of the ingredients. 

Our products are designed to support health and wellbeing and are not a substitute for medical treatment.

Clinic Naturae. Supporting you on your journey to health.

Clinic Naturae, 4 Black Swan Court, 69 Westgate Road, Newcastle upon Tyne, NE1 1SG
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  • 0345 680 1418
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