Kohomba (Ceylon Neem)
Azadirachta indica var. siamensis
About Kohomba (Ceylon Neem)
Kohomba (Ceylon Neem) (Azadirachta indica var. siamensis) is a herb used in the Sri Lankan Traditional Medicine tradition to help with Skin Health, Fever, Diabetes, and Immune Support, among 1 other condition it addresses. The leaves, bark and seeds are the parts traditionally used, used both internally and topically.
Parts used
Conditions addressed
Tea / Infusion
- Steep 1–2 tsp of dried Kohomba (Ceylon Neem) in freshly boiled water for 5–10 minutes.
- Cover while steeping.
- Strain and drink.
Tincture
- Pack dried Kohomba (Ceylon Neem) into a jar and cover with 40–60% alcohol.
- Seal and steep for 4–6 weeks, shaking daily.
- Strain and store in a dark dropper bottle.
Powder / Capsule
- Grind dried Kohomba (Ceylon Neem) into a fine powder.
- Fill size 00 capsules or stir into smoothies or honey.
Topical / Poultice
- Mash fresh Kohomba (Ceylon Neem) or mix the powder with a little water to form a paste.
- Apply to the affected area for 20–30 minutes.
Infused Oil
- Fill a jar with dried Kohomba (Ceylon Neem).
- Pour over a carrier oil until submerged.
- Leave for 4–6 weeks, then strain.
- Use topically or as a salve base.
Herbal Bath
- Brew 4–6 tbsp of Kohomba (Ceylon Neem) in 1 litre of hot water for 15 minutes, strain, and add to a warm bath.
- Soak for 20–30 minutes.
Contraindications
- Pregnancy & breastfeeding — insufficient safety data; consult your doctor
- Children under 12 — therapeutic dosage not established
- Autoimmune conditions (lupus, MS, RA) — may overstimulate immune response
- Diabetes medications — may enhance hypoglycaemic effect; monitor blood glucose closely
Warnings
⚠️ Pregnancy & Breastfeeding
Safety during pregnancy and breastfeeding has not been established for most herbal remedies. Consult your midwife or doctor before use.
⛔ Diabetes Medications
May enhance the blood sugar–lowering effect of insulin or oral diabetes medications. Monitor blood glucose closely.
⚠️ Allergic Reactions
Discontinue immediately if you experience rash, itching, swelling, or difficulty breathing.
⚠️ Not Medical Advice
This information is for educational purposes only. Always consult a qualified healthcare provider before using herbal remedies.
Drug & herb interactions
May affect blood sugar
Watch for: Insulin and oral diabetes medications (metformin, sulfonylureas)
Additive blood-sugar-lowering effects can risk hypoglycemia — monitor glucose closely.
May affect immune activity
Watch for: Immunosuppressants (for transplant or autoimmune conditions)
Immune-stimulating herbs can work against immunosuppressive therapy.
Where to find in nature
Native region
Indian subcontinent, Southeast Asia (naturalised in tropics globally)
Climate
Tropical and subtropical
Habitat
Dry to moist tropical forests; drought-tolerant. Widely planted across Asia, Africa, and the Americas. Common as a street tree in India.
🌿 To see Kohomba (Ceylon Neem) growing, visit botanical gardens, university plant collections, or specialist herb nurseries near you. If foraging in the wild, always work with an expert identifier — never consume a plant you are not 100% certain of.
Where to buy
In store
- Health food stores (Whole Foods, Natural Grocers, Holland & Barrett, GNC)
- Naturopathic clinics and integrative medicine practices
- Specialist herbal apothecaries and herbalist practices
- Farmers markets with herb vendors
Online
iHerb
Wide selection of standardised extracts, capsules, and powders with lab testing
Mountain Rose Herbs
Premium bulk dried herbs — certified organic, ethically sourced
Starwest Botanicals
Large selection of certified organic bulk herbs and powders
Herb Pharm
High-quality liquid extracts and tinctures, rigorous quality standards
Amazon
Convenient — verify brand certifications and check third-party testing
Etsy
Small-batch artisan herbalists, hand-harvested and wildcrafted herbs
Quality tips
When buying Kohomba (Ceylon Neem), look for: certified organic labelling, clearly stated country of origin, third-party lab testing for heavy metals and pesticides, and a batch expiry date. Standardised extracts offer consistent dosing; bulk dried herbs are more economical for regular use. Avoid very cheap, unlabelled products — quality varies enormously.