Laksha: the Plant and Insect Source of Lac

What is the Laksha plant?

The Laksha plant is really a misunderstanding. Many people search for it as if it were a herb, a tree or a flower, but Laksha is not a plant at all. It is lac: a natural resin secreted by a tiny insect that settles in colonies on the twigs of certain host trees. The confusion is easy to understand, because Laksha comes from trees and is gathered from them like a plant product, and because the classical texts list it alongside herbs and minerals. Yet the substance itself is of insect origin, not vegetable.

In Sanskrit the word Laksha means a hundred thousand, a nod to the countless insects that swarm on the branches to make it. The insect works over the bark, drawing sap from the host tree and giving off a hard, reddish resin that slowly builds into a thick crust. It is this crust, scraped from the twigs and purified, that Ayurveda has long valued. So the plainest way to answer the common question is this: there is no single Laksha plant. There is a lac insect, several host trees on which it lives, and the resin it leaves behind, which is what Ayurveda actually uses.

The lac insect and its host trees

The lac insect is Laccifer lacca, also written Kerria lacca, a minute scale insect of the family Kerriidae. The females settle in dense colonies on young branches, pierce the bark and feed on the sap. As they feed they secrete resin from their bodies, and because so many insects crowd together the resin merges into a continuous shell that coats the twig. The insects live and breed within this shell, and in time the encrusted branches are cut and the raw lac is collected.

The insect does not settle on just any tree. It favours particular hosts, and the classical and folk names of Laksha often point straight to them. Among the best known are Palasha (Butea monosperma), the flame-of-the-forest tree that the texts most closely associate with lac; Kusumbha; and ber, the jujube (Zizyphus). The quality of the resin was understood to vary with the host tree, and lac raised on Palasha was especially prized.

The same lac has a long life beyond Ayurveda. Refined, it becomes shellac, the resin used as a varnish and a natural coating; and the deep red colour held in the raw crust has served for centuries as a dye. So a single substance, the secretion of one small insect, gives Ayurveda its Laksha, the artisan a lacquer, and the dyer a warm crimson. Understanding this is the key to the whole subject: the “Laksha plant” that people look for is in truth this insect resin, seen from the medicinal side.

How Ayurveda prepares it

Because the raw crust comes off the branch mixed with bark, wood, insect remains and dust, it cannot be used as it is gathered. The first step is simply mechanical: the encrusted twigs are scraped and the lac is broken away from the wood, then cleaned of the coarse debris. What remains is the raw lac, still impure but freed from its branches.

Ayurveda then purifies it through the process the tradition calls shodhana. In the classical method the broken lac is boiled, often in a decoction or in water, so that the lighter impurities rise and can be skimmed or strained off and the cleaned resin settles. The purified lac is then dried and reduced to a fine powder, ready to enter the formulas. Only this purified material is used internally. The care taken over cleaning reflects a general rule of the tradition, that a raw substance of the field is refined before it is given as medicine.

Its place in Ayurveda

Laksha is astringent and cooling, and the classical writers grouped it with the substances that settle Kapha and Pitta, that help knit a broken part, and that steady the flow of blood. Its two most familiar homes in the texts are the diseases of the bones and the bleeding disorders, and it lends its name to the well-known preparation Lakshadi, a lac-based formula of the classical repertoire.

The dravyaguna texts describe the purified lac as traditionally associated with a set of classical conditions, each named here in its Sanskrit term with a plain gloss:

• Bhagna: fracture and injury of the bones, the classical setting for lac-bearing preparations understood to support the knitting of the broken part.
• Raktapitta: the group of bleeding disorders, where its astringent, cooling quality was called upon to steady the blood.
• Kushtha: the broad classical category of skin disorders, in which Laksha is named among the supporting substances.

These are the traditional textual associations recorded in the classical literature. They set out how Ayurveda has long understood the substance and are given for reference and study, not as statements of medical effect or as advice to treat any condition.

Good to know

The single most important point about Laksha is what it is: an insect secretion, not a plant product. That makes it an animal-derived substance, and it is therefore not vegan, a distinction worth keeping in mind for anyone who chooses ingredients on that basis. It is the purified resin that the tradition uses, not the raw crust taken from the branch, and the classical formulas call for the cleaned material only.

This entry describes the classical Ayurvedic understanding of the substance. It is not medical advice, and anyone with a health condition should speak to a qualified practitioner.

Frequently asked

Is Laksha a plant? No. Although it is often searched for as the “Laksha plant,” Laksha is not a plant. It is lac, the natural resin secreted by the tiny lac insect (Laccifer lacca) as it feeds on the sap of certain host trees. The resin is gathered from the twigs, purified and used; the plants involved are only the hosts the insect lives on, not the source of the substance itself.

Where does Laksha come from? From the lac insect. Swarming in their thousands on the young branches of host trees such as Palasha, Kusumbha and ber, the insects give off a reddish resin that hardens into a crust around the twig. That crust, scraped off and purified, is Laksha.

Is Laksha the same as shellac? They share a source. The refined form of the very same lac resin becomes shellac, the natural varnish and coating, and the raw crust has long served as a red dye as well. Ayurveda takes the same substance, purifies it in its own way and uses it as Laksha.