I used Yarrow in my latest summer series cp soap and I have to say, it performed like a dream. No ricing, siezing or any issues with this fragrance. It's a lovely scent, softly flowery and just the right amount of herbaceousness. It's a light scent so I decided to use the max IFRA recommendation. I'm glad I did, I can't comment on how long it will hold it's scent strength since the soaps are only a couple weeks old at this point. I would recommend this fragrance.