# Tea Tree & Citronella Shampoo for Horses

> A tea tree and citronella wash that cleans the coat, leaving a light insect-deterring finish. Ferro's Repel Oil Shampoo. Free shipping over $100.

- **URL:** https://piaffehorse.com/collections/tea-tree-and-citronella-shampoo/

Tea tree and citronella act as natural insect deterrents when used in a wash — milder and shorter-lasting than a synthetic spray, not a replacement for one. Ferro's [Repel Oil Shampoo](/product/repel-oil-shampoo/) is an oil-based bathing shampoo built on tea tree, citronella, lemongrass, and eucalyptus. It cleans the coat and leaves a light, deterring finish behind. This is a wash, not a leave-on spray.

## What's in This Wash, and What It Actually Does

[Repel Oil Shampoo](/product/repel-oil-shampoo/) is an oil-based bathing shampoo built on botanical oils — citronella, lemongrass, eucalyptus, and tea tree. Worked through the coat, these oils clean the way any shampoo does, then leave behind a scent and a light oil residue that flies and other biting insects tend to avoid, for a while anyway. It's a cleansing wash first; the deterrent effect is a bonus of the formula, not the point of it. Read more on [citronella and tea tree for horses](/ingredients/citronella-and-tea-tree-for-horses/) and [eucalyptus and lemongrass for horses](/ingredients/eucalyptus-and-lemongrass-for-horses/).

- Citronella and lemongrass — classic insect-deterring botanicals
- Eucalyptus — adds to the deterring scent profile
- Tea tree — a cleansing botanical, not a medicated antifungal treatment
- Oil-based formula — cleans while leaving behind a light protective residue

## A Wash, Not a Leave-On Spray

Gentler than synthetic repellents — and shorter-lived

Repel Oil Shampoo is a wash you rinse out at bath time, not a leave-on fly spray. Its botanical deterrents sit easier on skin than synthetic repellents do, but they also fade faster, so don't expect it to carry a horse through a full day of turnout on its own. Tea tree here is a cleansing botanical, not a medicated antifungal treatment — for a genuine skin infection, call your vet.

During heavy fly season, bathe with Repel Oil Shampoo on your normal washing schedule rather than every day — over-washing dries the coat no matter what's in the bottle. Pair it with a leave-on repellent for coverage between baths. See our [summer fly grooming guide](/guides/summer-fly-grooming/) for a full seasonal routine.