Before modern hair treatments, frizzy hair could only be smoothed by pressing it with an iron or by running it through the fingers of a jazz pianist. Achieve a noteworthy ‘do with today’s Groupon to Danny Dillon Shampology. Choose from the following options:

• For $99, you get a Coppola keratin hair-smoothing treatment (up to a $450 value).
• For $189, you get two Coppola keratin hair-smoothing treatments (up to a $900 value).
• For $269, you get three Coppola keratin hair-smoothing treatments (up to a $1,350 value).<p>

The tress tamers at Shampology transform coifs from unkempt to smooth and sleek with the help of a protein-rich keratin treatment. To begin each smoothing session, a savvy stylist assesses corkscrew curls and frizzy tufts and then drenches locks in a sudsy clarifying shampoo to shoo away excess dirt and blossoming dandelions. After a thorough blow-dry, lithe fingers divide the hair into four sections and swaddle strands from root to tip in a helping of keratin solution, which is even more protein-rich than a shower cap made from prosciutto. Depending on each individual’s follicular texture, hair marinates for up to 20 minutes before another toasty blow-dry and a finishing stint with the flatiron seal in straightness. Though results vary by hair type and condition, the keratin components should promote healing of damaged mops and block humidity and environmental toxins from permeating the hair shaft.

Throughout the process of hair refurbishment, Danny Dillon Shampology guests can unwind amid the salon’s mix of vibrant burnt-orange walls in the entryway, and calm taupe palate in the styling stations. Modular black chairs cushion style seekers before a full-length mirror.