Sister-founded in 2005 by two immigrant estheticians trained in India and Iran, Beauty by Dolly runs a dedicated threading and sugaring studio at 3650 Fifth Ave #101 in 92103 Hillcrest. House-made sugar wax — just sugar, water, and lemon juice — adheres only to hair and not to skin, a chemistry overlap with the Persian sugar-paste technique used at peer brow studios like Gazal Beauty Brow & Hair in Hillcrest. Threading is executed with 100% cotton thread twisted into a lasso to lift hairs individually across the full face, upper lip, chin, and brow shaping, with no adhesive ever touching the skin. The service menu extends into keratin lash lifts, brow lamination, and brow tint, overlapping the same lash-and-brow combo bookings available at LASHBAR Hillcrest further up the corridor. An in-house training arm called ThreadingU runs weekend certification seminars teaching the lasso-thread technique to estheticians working outside the studio, making this one of the few Hillcrest hair-removal shops operating both a client floor and a trade school under one roof.