Introducing, YASMINE™
Your Total Plant Boost. Powered by BSF Biology.
Natural resilience for stronger, healthier plants YASMINE™ offers growers a planet-smart charge of positive goodness to fuel increased plant strength, root vitality, and natural resilience in your plants.
Plants face constant pressure – from erratic weather and repotting stress to pest challenges. YASMINE™ delivers a targeted biostimulant boost derived directly from Black Soldier Fly biology.
Formulated with BSF chitosan – a natural biopolymer carrying an inherent positive electrical charge – YASMINE™ works with plant biology to enable and maximise natural defence mechanisms, strengthen cellular walls, and unlock vigorous growth from root to tip.
Trials, supply, distribution, retail, or technical questions – tell us what you need.
Feed the wild. Complete the circle.
Responsibly made in Lincolnshire from transformed surplus food waste, YASMINE™ turns Black Soldier Fly biology into a ready-to-use plant biostimulant designed to support stronger roots, healthier growth and natural resilience.
Powered by BSF-derived chitosan, a UK-first, YASMINE™ helps plants not only activate their own mechanisms but also supercharge them, so plants can respond better to periods of active growth, repotting, weather stress and pest pressure. Fully traceable, fully accountable and made with circularity at its core, it is designed for conscientious growers.
The owner-operator of the UK’s largest operational commercial-scale insect Biotechnology Business, FKS, was built to turn local surplus food and farm waste into valuable, low-emissions products. We do this through bioconversion: using the Black Soldier Fly (Hermetia illucens) to convert organic waste into useful co-products, like YASMINE™. In plain terms, we take unnecessary waste and transform it into ingredients that support a more resilient food system for the UK.
Built by BSF biology to help plants thrive
Cellular Strength & Active Growth
Stimulates natural metabolic pathways, encouraging sturdier stems, lush foliage, and uniform development across indoor and outdoor plants.
Root Vigour & Establishment
Enhances root-zone uptake, improving nutrient transport and accelerating establishment after transplanting.
Built-in Environmental Resilience
Primes plants to handle environmental stress—including drought, temperature swings, and pest pressure—without synthetic chemicals.
100% Circular & Sustainable
Derived from upcycled surplus inputs transformed by British insect bioconversion. Safe, non-toxic, and biodegradable.
Available in ready-to-use and concentrate formats
YASMINE™ is available in flexible formats for both retail and commercial growing environments. For garden centres, retailers and consumer-facing ranges, the ready-to-use 250ml spray offers a simple, no-dilution plant boost for houseplants, garden beds, borders, edible crops and shrubs.
For professional growers and controlled-environment and hydroponic producers, YASMINE™ is also available as a 2% BSF-derived chitosan concentrate, designed for low-dose use and evidence-led application protocols across high-value crops.
The ready-to-use format can be applied as a foliar spray or root drench during active growth, repotting or periods of plant stress, while the concentrated format gives buyers and growers greater flexibility for replicated crop trials, commercial production systems and crop-specific testing.
Chitin, chitosan and Black Soldier Fly biology
Chitin is a natural structural material found in fungi, crustacean shells and insect exoskeletons. In black soldier fly frass, it comes mainly from the skins the larvae shed as they grow.
Chitosan is closely related, but it is not quite the same thing. It is made when chitin is converted through a process called deacetylation, changing how the material behaves and making it useful across agriculture, food production and other industries.
The important distinction for Yasmine is simple: it contains chitosan produced from chitin through deacetylation. Research into chitosan and its applications is developing quickly, but as is the FKS way, we will always separate promising science from proven product claims.
Ready-to-use retail spray
A simple 250ml format for consumer use across indoor and outdoor plants, with no dilution required.
Professional concentrate
A 2% BSF-derived chitosan stock solution for hydroponic, controlled-environment and commercial growing trials.
Flexible application
Suitable for foliar spray and root drench use, depending on crop, growing system and application protocol.
Trial-led development
Available for buyers and growers looking to establish crop-specific responses, including root vigour, crop uniformity, nutrient-use performance and abiotic-stress resilience.
How to use YASMINE™
YASMINE™ ready-to-use is a planet-smart plant growth supplement for houseplants, garden beds, borders, edible crops and shrubs. Do not dilute. Shake well before every use. It can be applied as a foliar spray or a root drench.
At a glance
- Ready-to-use – do not dilute with water
- Shake well before every use
- Use as a foliar spray or root drench
- Suitable for indoor and outdoor plants
Foliar Spray
Spray leaves and stems until evenly wet, avoiding heavy run-off. Apply in the early morning or late evening.
Coverage: 250ml treats 2.5–3.5m², around four to five plants.
Frequency: every seven to 14 days during active growth or stress.
Root drench
Apply directly to the soil at the base of the plant.
Volume: 50–100ml per potted plant, or 200–250ml per garden shrub.
Frequency: every two to three weeks, or at transplanting.
Storage: Store upright in a cool, dark place. Keep sealed and protect from frost and heat.
Compatibility: Compatible with most organic inputs. Avoid mixing with high-pH products (above 8.0) or copper fungicides.
Safety: Keep out of reach of children. If contact occurs, rinse eyes or skin with clean water. Recycle or reuse the bottle.
For YASMINE™ 2% concentrate, professional concentrate application should can agreed with the FKS team as part of a crop-specific trial or growing protocol.
Ready to stock YASMINE™?
Whether you are looking to stock retail-ready 250ml spray bottles or explore horticultural applications, talk to the team at FKS.