Plants, nowprogrammable.

Botanical raw materials with the same chemistry, batch after batch. Programmed by light, climate and nutrition. Never the genes.

CrocinsPicrocrocinSafranalAnthocyaninsAsiaticosideMadecassosideBacosidesRosmarinic acid

The problem

Same seed.
Different season.
Different chemistry.

What nature makes, we make reproducible. In the field, four things decide what ends up in your batch.

01

Climate

Heat, drought and rain change how much of each molecule a plant makes.

02

Geopolitics

Many botanicals used in Europe come from a few distant regions.

03

Adulteration

Long supply chains make origin and content harder to check.

04

One trial a year

In open fields, one season gives one chance to test a change.

Who we work with

Built for the teams that turn plants into actives.

One growing protocol per species and target compound, repeated every week, for three kinds of teams.

Backlit slices of citrus fruit

Cosmetic, nutraceutical, food and pharma brands

Extraction-ready biomass, defined every batch

A botanical source you can audit

How it works

You specify.
We program.
We repeat.

From one plant and one molecule to a validated growing protocol in 3 to 6 months, then the same batch every week.

01

You specify

A species, a target molecule, a specification, or a reference sample.

02

We program the plant

We develop the light, climate and nutrition protocol and validate it analytically, in 3 to 6 months.

03

We repeat it, every week

Every batch measured against your specification. Fresh, dried or freeze-dried.

04

Your protocol stays yours

A protocol developed for your specification stays exclusive to you.

In numbers

Grown indoors, all year.

Light, climate and nutrition are set and measured in every room, so the calendar no longer decides.

52

weeks of harvest a year

3–6

months to a validated protocol

One protocol, repeated every week

0

pesticides, soil or GMO

Why Horssol

The environment is the program. The genetics stay the same.

01

A seed

The genetics stay the same. We never modify the plant.

02

Light

Intensity, spectrum and day length, set and measured.

03

Climate

Temperature and humidity, held to the protocol.

04

Nutrition

A nutrient recipe that steers how the plant makes its molecules.

05

A protocol

The recipe, validated analytically and repeated every week.

MRP-1™

Every program makes the next one faster.

MRP-1™ is our model of how a plant’s metabolism responds to light, climate and nutrition. It ranks growing scenarios so that the most promising ones are tested first.

Use cases

Already growing. Just getting started.

Saffron

Protocol validated 2025

Crocus sativus · Targets

  • 01Crocins
  • 02Picrocrocin
  • 03Safranal

Elicited microgreens

SIAL Innovation 2026

Red cabbage, pea · Targets

  • 01Anthocyanins
  • 02Proteins

Protocol library

On file

Close-up of green leaf veins

Species · Targets

  • 01Centella · asiaticoside, madecassoside
  • 02Bacopa · bacosides
  • 03Melissa · rosmarinic acid

Supported by

Questions

Questions, answered.

What does Horssol do?

Horssol grows plants in controlled environments to produce botanical raw materials with a specified, reproducible metabolite profile. For each species and target compound, we develop a growing protocol (light, climate and nutrition), validate it analytically, then repeat it batch after batch.

Who are Horssol's clients?

Formulators (cosmetic, nutraceutical, food and pharma brands), active ingredient manufacturers and extractors, and CDMOs that need a consistent, documented botanical source.

Are the plants genetically modified?

No. Horssol changes the growing environment, not the genetics of the plant. Our plants are grown without pesticides, without soil and without genetic modification.

How long does it take to develop a growing protocol?

Usually 3 to 6 months: we develop the protocol for your target compound, then validate it analytically. Supply then follows under agreements of 24 to 36 months, with harvests all year.

In which formats is the plant material delivered?

Fresh, dried or freeze-dried, with a batch record for every lot.

Where is Horssol based?

Horssol grows its plants in Lomme, in the Lille metropolitan area, in northern France.

Next step

Start with one plantand one molecule.