For a bath, add the infusion to warm bath water so the fragrance disperses through the water and into the air around the tub. Start with a small amount, especially if you are trying the product for the first time or if you are sensitive to strong scents, then adjust in later baths according to how intense you like the aroma.
For a sauna, the product is intended to be diluted before it is poured over hot stones. Do not use it undiluted on sauna stones, because concentrated aromatic products can create an overly strong burst of scent and may not be suitable for the sauna environment. Mix a small amount into water first, then pour the diluted mixture onto the stones as you normally would when creating steam.
The purpose of the product is aromatic: natural essential oils are released into the bath water or steam, creating a fresher, more invigorating atmosphere. It is best used when you want the heat ritual to feel lighter and more pleasant rather than heavily perfumed. If the scent feels too strong, ventilate the space where possible and use less product next time.
Avoid contact with the eyes and do not apply the product directly to damaged or irritated skin. If you know you react easily to essential oils, use a very small amount at first and stop using it if discomfort occurs.