Lenor Aroma Jewel Black Musk is a laundry scent booster made as fragrance beads that go directly into the drum at the start of washing. The Black Musk version is built around a sweet musk profile with a powdery, candle like depth, so it adds a richer scent than a standard softener alone. Because it is a separate booster, you can adjust the amount to suit towels, bedding, or everyday clothing. The 420 ml bottle is best for shoppers who care most about long lasting fabric fragrance and want more control over scent strength in their laundry routine.