Before you go into marketing, story telling, business model creation or working out how your product is different from others, I’d recommend you go deep on your customers and meeting their needs.
In design thinking you design your product off a need (not a bright idea or something that’s different for difference sake). Go deep in understanding this. Interviewing people is a great way to do this, as Kirsty menntioned above; Individual exploratory interviews where you’re open and curious and listening is a really powerful way to uncover gold. Interview 10 people you think are your target market and learn deeply. You can then do a bigger survey via surveymonkey et al to get a wider view.
This gives you the clarity you need to design off – formulation, fragrance, texture, sensory experience, packaging, labelling, UX etc etc. It also gives you the essence of you – which is what you use to story tell.
This is the stuff I’ve done for lots of lovely people like yourself, in the health and wellbeing space after doing at ecostore. Happy to chat more if you connect me via linked in. The world needs more herbalists!