How to Use Sangre de Grado (Dragon's Blood): A Guide

May 24, 2026

If you have ever nicked the bark of a Croton lechleri tree in the Peruvian Amazon, you have seen where the name comes from. A deep red sap wells up and runs down the trunk like blood. Locals call it sangre de grado, blood of the dragon, and they have used it as a portable first-aid kit and stomach remedy for hundreds of years. The Ashaninka and other Amazonian communities still tap it the same way today.

It now comes bottled as a thick red resin, which is convenient but a little mysterious if you have never handled it. This is a plain guide to using it: on your skin, in your mouth, and the spots where you should slow down and think twice.

What you are actually working with

Sangre de grado is a latex, not an oil or a tincture. Straight from the bottle it is opaque, brick red, and surprisingly thick. The parts researchers care about are a wound-friendly alkaloid called taspine and a group of compounds called proanthocyanidins. One of those, known as SP-303, was purified into a prescription drug called crofelemer that the FDA approved for a specific type of diarrhea. That is worth knowing, because it shows the raw sap is not folklore alone, even though the bottle on your shelf is the traditional whole resin rather than an isolated drug.

How to use it on your skin

This is the most common use and the easiest to get right.

Clean the area first. A scrape, a bug bite, a shallow cut, or a blemish all work.
Put one small drop on a clean fingertip.
Rub it into the spot in slow circles. Here is the part that surprises people: the red sap turns into a pale, creamy foam as you work it in. That shift from blood red to milky white is normal, and it means you have rubbed it in enough.
Let it dry. It forms a thin, slightly tacky film, almost a second skin, that seals the area. Reapply once or twice a day as needed.

A little goes a long way. One drop covers more than you would guess, and piling on extra does not help.

How to use it in your mouth and gut

The internal tradition is older and a bit more involved. In the Amazon, people put a few drops in a small amount of water for mouth sores, sore gums, a scratchy throat, or an unsettled stomach.

For a mouth rinse, stir 5 to 10 drops into a couple of tablespoons of water, swish it around the sore spot for a minute, then spit. For general stomach use, the traditional approach is roughly 10 drops in a small glass of water, once or twice a day, for a short stretch rather than ongoing. Fair warning: it is bitter and astringent, and it can briefly stain your tongue. Most people chase it with plain water.

We want to be honest here. The strongest evidence for the gut sits with the purified crofelemer drug, not the raw resin you would swallow at home. The traditional internal use is real and old, but it is not the same as a tested dose, so keep the amounts modest and stop if anything feels off.

How much and how often

For skin, use it as needed until the area heals, usually a few days. For internal use, treat it as a short-term helper, not a daily supplement you take for months. If you find yourself reaching for it every single day for weeks, that is a sign to check in with a healthcare provider instead.

The cautions worth knowing

First, the obvious one: it stains. Red resin on a white shirt, a bathroom counter, or a good towel is a real problem, so handle it over the sink and cap it tightly. Second, do a quick patch test before your first skin use, since any botanical can cause a reaction in a small number of people. Dab a drop on your inner forearm and wait a day.

If you are pregnant or breastfeeding, skip the internal use. There simply is not enough safety research, and that is reason enough to wait. Children should not take it internally either. And because cheap, watered-down sangre de grado is common in tourist markets, buy from a source that names the species (Croton lechleri) and sells pure resin. We are not doctors, so if you take regular medication or have a health condition, ask yours before using it internally.

Storing it

Keep the bottle tightly closed, away from direct sun and heat. Pure resin stays stable for a long time, though it can thicken as it ages. A few drops of clean water will loosen it if it gets too stiff to pour.

Where it fits in a Peruvian medicine cabinet

Sangre de grado is one of those rare single bottles that earns its shelf space, covering both minor skin scrapes and the occasional upset stomach. It pairs well with the rest of our General Wellness collection, and if you like wildcrafted Amazon botanicals, our Cat's Claw capsules and Graviola capsules come from the same rainforest tradition.