Happy First Day of Summer!

FREE Sharla's Coffee Drink with Purchase Over $100! Thursday - Saturday (9am-3pm)

Daily Arrivals

Summer is Here!

Spring Denim is here!

Mac & Me

Tap the button below to shop our best-selling exclusive denim.

Shop Best-Selling


New Markdowns

Shop Summer styles at a discount!

Meet the Team!

We are Mainstream Boutique of Janesville Wisconsin! Started by a mother daughter team, Mainstream opened its doors in 2020 with the goal to empower and encourage women of all ages. We can't wait to meet you!

This is the best place to shop in Janesville. They are so helpful and the merchandise they have is so great! They are honest and just want you to walk out happy with your purchase. Love my experience every time I stop in.
— Jill
Mainstream in Janesville is one of the best boutiques that I have ever experienced. They always remember your name and are smiling. The live shows on Thursday are fun and exciting to see the new arrivals.
— Amy
This boutique is so wonderful! The ladies are very helpful with picking outfits out and are very honest if they don’t think it looks ok. They will help you with sizes and styles no matter what your age is!! I’m 55 and this is my favorite store!
— Sharon
My favorite boutique! Quality and friendly staff is what you’ll find at Mainstream Boutique Janesville. They have super fun Facebook/Instagram lives every Wednesday and give the best styling advice!
— Imelda

Mac and Me

Our exclusive brand, Mac and Me, was created by Mainstream Boutique founder, Marie DeNicola, and inspired by her only daughter, Mac. Designed with love, Mac and Marie create every piece of denim, jewelry, tops, jackets and beyond for women of all generations.