With permission from our artisan distiller / grower in Australia page:
Those of you familiar with Helichrysum will know that there are a number of different species that are distilled. Compared to other Helichrysum hydrosols that I've smelt, ours is sweet, but more "full-bodied" with the typical "curry-like" aroma of the plants' foliage. I asked Mark Webb of Aromamedix why this might be, and he said that as Helichrysum has such a low oil yield, many distillers "cohobate" their distillations. This means that they recycle the collected hydrosol back into the water supply that generates steam, to maximise the collection of essential oil, and thus maximise the oil yield. The process of cohobation also dilutes the water-soluble plant compounds because the cohobated hydrosol is added to the water used for steam; it is not the sole supply of water for steam. Thus, the process dilutes both oil and water-soluble plant compounds of the hydrosol.
Those of you who know me also know we never cohobate. All of our hydrosols are distilled in a single pass, and are separated from the essential oil with a lower separation temperature than normal. This makes for an oil-rich hydrosol, and incidentally explains why we'll probably never have enough of the Immortelle essential oil to sell.
As with all essential oils and hydrosols, it's never a good idea to evaluate the aroma by smelling straight from the bottle. In the case of this Immortelle hydrosol especially, as it is more "full-bodied" than you may be used to, I would ask that you evaluate on scent strips or an odourless blotting paper for a base reference when considering its aroma. In particular, you may notice that when it is immediately applied to a strip, is strong, but in a couple of minutes it dries down very sweetly, still more full-bodied than others I've smelt.
Regarding therapeutics: we make no therapeutic claims for our products. I can however, relate personal experience. Just like all other harvest seasons, this last December and January have seen me cut, graze and impale my hands upon the sharp teeth of my "Kama" (Asian strawberry sickle). You know when you've cut yourself and then later wash your hands how the cut hurts? I've been using our Immortelle hydrosol on my scrapes and cuts from my harvesting sickle and pain goes in 5 minutes and the wounds harden in about 15 minutes... Problem is I keep cutting and grazing myself lol, but I love the aroma of our Immortelle hydrosol AND what it does for my hands, especially at harvest time.