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Fragrant extracts VS Essential oils. Which is gentlest to the skin per unit of scent?
I don’t have the exact figures, but it seems like a significant amount of people are sensitive to various essential oils, so if trying to mask a scent or give your formula a mild, pleasurable one - are there extracts that are less likely to cause contact reactions that also can impart noticeable fragrance to the formula if used at a say >5% concentration?
In other words, looking for the gentlest way to impart or mask scent in a formula without using perfume to maintain the fragrance free label.
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