I’ve had this Biotherm Aquasource Instant Hydrating Softening Lotion for such a long time that I think the product has been discontinued or in any case, renamed as Aquasource Hydra-Mineral Softening Lotion, specially designed for dry skin.
The softening lotion is very pleasant when applied and instantly hydrating. This is one of the better toners I’ve used and this would be ideal for pouring on to DIY masks. Biotherm skincare is (in general) very good and I’ve often had positive results with Biotherm products. I wish they did more travel size sets as I find it easier to use those up than having to splurge on their full size products.