COS Coupons & Promo Codes for September 2020

Save with these COS discounts and coupon codes
Coupons from similar stores
  • Kylie Cosmetics coupons
    Save 25% Off at Kylie Cosmetics
    (@Amazon) Up To 25% Off Kylie Cosmetics
    Get Discount
  • Kiara Sky coupons
    Save 10% Off at Kiara Sky
    Extra 10% Off Sitewide
    Reveal Code
  • VitalSleep coupons
    Save 20% Off at VitalSleep
    20% Off Sitewide
    Reveal Code
  • Winky Lux coupons
    Get Free Shipping at Winky Lux
    Free Shipping on Orders $10+
    Reveal Code
  • JewelScent coupons
    Freebie at JewelScent
    Free Diamond Pen with $40 Purchase
    Reveal Code
    Ends Wednesday
  • Winky Lux coupons
    Get Free Shipping at Winky Lux
    Free Shipping Sitewide Over $10 within USA
    Reveal Code
    Ends Monday
  • Milani Cosmetics coupons
    Get Free Shipping at Milani Cosmetics
    Free Shipping on All Domestic Orders
    Reveal Code
    Ends Monday
  • Joppa Minerals coupons
    Save 25% Off at Joppa Minerals
    Take 25% Off Your Entire Purchase
    Reveal Code
    Ends Tomorrow
  • jane iredale coupons
    Freebie at jane iredale
    Free Brown Sugar Pure Pressed Eye Shadow Triple with Any $100 Order
    Reveal Code
    Ends Monday
  • Lime Crime coupons
    Save 50% Off at Lime Crime
    50% Off All Lips
    Get Discount
    Ends Tomorrow
More About COS Coupon Codes and Offers

BrokeScholar’s team of editors work 24/7 to update this page with active promo codes, coupons and discounts for COS. If you cannot find the deal you are looking for, try following COS on socail pages. Often COS will release special promo codes to their followers. Are you a student? Check to see if COS has a student discount to save even more. If you still can’t find a deal at COS, bookmark this page and check back frequently for the latest offers.

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About COS Discounts

Save with our best COS discounts.

Does COS Offer Student Discounts?
Yes! Get 10% Off COS for students.
See details
How to apply Promo Codes at COS
  1. Select a COS promo code that fits your order. Click "Reveal Code" to copy the promo code to your clipboard.
  2. Head to and navigate to your shopping cart. Double check the right items are in your cart.
  3. Find the promo code box, paste your code, and click apply.
  4. Review your savings before finishing checkout. The discount should reflect in your order total.