You can buy it from various offline and online store like Amazon, Best Buy, Target and Walmart. But which one is the best? Based on my experience before, I think the best place to buy this product is at Amazon.com. This giant online retailers give the best price which included FREE Shipping (in US only).
Here is the direct link to product page :
Ez Flow Q Monomer Acrylic Nail Liquid 4oz - $14.87
http://www.amazon.com/gp/product/B0012NW…
SuperNail Manicure Nail Art Acrylic Professional Liquid Monomer 4 fl. oz. (118 ml) - $8.49
http://www.amazon.com/gp/product/B0018N0…
Creative Nail Design Acid Free Primer .5oz - $8.95
http://www.amazon.com/gp/product/B00129H…
Ez Flow Nail Primer .5oz - $10.18
http://www.amazon.com/gp/product/B0012NX…
Acrylic Brush Kit - $33.50
http://www.amazon.com/gp/product/B000TMK…
Debra Lynn Professional Acrylics Nail Large Sable Brush with Wood Handle - $3.99
http://www.amazon.com/gp/product/B0018V1…
OPI Avoplex Cuticle Oil .5 oz. - $6.29
http://www.amazon.com/gp/product/B000TBW…
Ez Flow High Definition Acrylic Nail Powder clear .75 - $7.95
http://www.amazon.com/gp/product/B002T6T…
Ez Flows High Definition Acrylic Nail Powder .75 Oz Pink - $5.95
http://www.amazon.com/gp/product/B002YS1…
500 Full Acrylic False Artificial Tips Nail Art -- Clear - $13.95
http://www.amazon.com/gp/product/B001G3V…
=== Good luck, happy to share with you.. ===