Read our Safety, Service and Sanitation Pledge and our new Covid-19 Sanitation Practices/Policies.

Get 50% off R+Co Liter sets by using Sine’s affiliate link and entering “LITER50” at checkout. This flash sale is now live, and ends Monday, June 29th at 11:00 a.m. CST.

Siné’s owner Laura B. sat down with Jenn White of WBEZ’s The Reset Podcast. Check out their conversation about safely reopening Sine Qua Non Salon! Listen here.

Sine Owner Laura B. spoke to the Chicago Tribune about the process of reopening a hair salon post-quarantine. Read all about it here!

Siné owner Laura B. was on NPR yesterday! Listen to LB on Reset talk about doing hair at home. Here’s where you can read all about it!

Support Siné while stocking up on your favorite R+Co products! For the next 48 hours (4/13 – 4/15), all liter sets are 50% off on R+Co’s website.

Sine Qua Non is proactive 😎 Due to the rapidly changing Covid-19 situation, we’ve decided to move our opening date to April 14th for now, though that will likely get pushed back by the City of Chicago. Get booked for your next service by emailing sine2@sinequanonsalons.com. We will be super busy by the time we […]

How it began… August 18th, 1993: Our first salon, at 2944 N. Lincoln opened with two stylists, Laura B. and Kalena from Curl Up and Dye on Clark St. 5 years later, with 6 stylists and only 6 stations, we grew out of the little house and into the sky………

Oribe’s brand new Silverati products have arrived! Adding to the existing shampoo and conditioner, the Silverati line is specially formulated for silver, gray and white-toned hair. Hair that’s in this color family can often feel brittle or coarse, and can look yellowish or dull at times. Whether natural or dyed, your silver locks deserve special […]

We offer a variety of in-salon conditioning treatments to solve any kind of hair issue you may be having. let us customize a treatment to improve the long-term health of your hair.

This winter, we are highlighting Oribe’s Serene Scalp line. Check out the products below and enjoy 10% off of any Serene Scalp product for January and February 2020!