Skip to product information
1 of 4


Regular price
Regular price
Sale price
Tax included.
HYSHIELD - A-Grade Hydroponics HYSHIELD - A-Grade Hydroponics HYSHIELD - A-Grade Hydroponics


What is HYSHIELD ?

HYSHIELD is an all-natural product derived from the chitin-rich shells of crustaceans. HYSHIELD's active ingredient, Chitosan, is derived from this sustainable-sourced chitin and stimulates your plant’s immune system, helping to keep pathogens and pests at bay. 

We have been using HYSHIELD in-store on a variety of crops and plants with amazing success. HYSHIELD integrated with our current program of nutrition which has contributed to healthier and more resilient plants. I expect this product to be a real game changer, especially as gardeners learn to deal with the unpredictable Melbourne weather. -Jase from A-Grade Hydro


  • Effective in all growing substrates & all growth stages
  • Enhances floral development and vigour
  • Reduces transpiration
  • Improves plant survival rates in stressful environmental conditions
  • Improves plant health

HYSHIELD contains a high molecular-weight Chitosan that acts as a slow-release capsule. The concentration of Chitosan in this hydroponic nutrient facilitator is 1%.

This offers long-lasting support for the plant throughout the entire grow cycle. HYSHIELD provides a protective layer (shield) to the root zone and plant bio-mass which strengthens its action with every application.

  • PROTECT HYSHIELD Tricks plants into thinking they’re being attacked by pests sending the plant system in protective mode.
  • BOOST HYSHIELD Boost your crops immune system, and return huge yields.
  • UNLOCK HYSHIELD pushes your crops to the next level, unlocking the true potential in potency, oil production and growth.

HyShield How to use


*All orders are dispatched in unmarked boxes to maintain your privacy.*


Orders are shipped via Australia Post or Big Post. Orders are generally dispatched on Tuesday, Wednesday and Friday. Please allow for additional delivery time for remote areas. If you require express delivery, please contact our sales representatives at 03 9555 6667 or email to obtain a quote. 

Couriers will attempt delivery to the specified address. If no one is home to receive the delivery, the couriers will leave your parcel somewhere safe. If there is no safe place, re-delivery or collection will be organised.

We reserve the right to charge for any redeliveries if they occur. You are welcome to call us if special arrangements need to be made.  

Due to the increasing frequency of online fraud and theft, we are unable to ship to P.O. Boxes and Parcel Lockers.


All freight charges are calculated on weight, dimensions and location. We are committed to keeping shipping charges at a minimum and do not charge handling fees.

Please note: Freight costs are subject to change. Regional areas, large and bulky orders, and tail-lift delivery occasionally incur an additional levy. Should these costs need to be amended it will be to reflect the actual charges, and not incur additional ‘shipping and handling’ fees.

We will notify you if this rare situation occurs.



All payments must be cleared before dispatch. Payments can be made online via PayPal, AfterPay or Electronic Funds Transfer. Payments can also be accepted via credit card by phoning 03 9555 6667.

Please allow at least 24 hours for payments to clear.


You will be notified immediately if an item is permanently unavailable, with options for a replacement item at equal or higher value, refund or store credit.

All refunds will clear within 3-5 business days. Store Credits will be issued as an electronic Gift Card to be used online or in-store.


We comply with all necessary restrictions and guidelines when shipping any products classified under the Dangerous & Prohibited Goods & Packaging Post Guide.

If, for any reason in compliance with these guidelines, we are unable to fulfil an order a refund will be issued immediately.