Sanitize all your tools, bottles, and workspace before you begin.
In a glass measuring cup, combine the lavender hydrosol, chamomile hydrosol, aloe vera juice, and witch hazel.
Add the vegetable glycerin and stir gently.
Weigh and add 1g of Geogard ECT, stirring thoroughly to ensure even distribution.
Pour into a 120ml sterilized spray bottle, label, and store in a cool place (preferable the fridge).