It's no secret here that we're obsessed with all things Kate Middleton, so when we tested out some of the beauty products used by the Duchess herself, Karin Herzog, we knew we couldn't get enough. (We're especially obsessed with the new 7 Creams of the Week!

In honor of Kate's first year as a mommy, and all of our amazing readers who are mothers and grandmothers, we're giving away "the royal treatment"! We're giving away 10 luxurious Karin Herzog products to one lucky reader!

It's easy to enter! All you have to do is follow @KarinHerzog and @StyleList on Twitter and retweet 1 of 10 promotional tweets for a chance to win!

Full rules:
• Open to legal residents of 50 United States and the District of Columbia who are 18 and older.
• To enter, retweet (true retweet, quoted retweets will not be counted) 1 of our 10 tweets stating "RETWEET for a chance to win 10 luxury @KarinHerzog beauty products! Full rules: [RULES]."
• Contest begins on May 4th, 2014 at 12:01 AM Eastern Time and ends on May 4th, 2014 at 11:59 PM Eastern Time.
• You may enter up to 10 times.
• 1 winner will be selected in a random drawing at the end of the contest.
• 1 winner will (1) Karin Herzog 7 Creams of the Week, (1) Karin Herzog Cleansing Milk, (1) Karin Herzog Mild Scrub, (1) Karin Herzog Essential Mask, (1) Karin Herzog Vita-A-Kombi 1, (1) Karin Herzog Vita-A-Kombi Oil, (1) Karin Herzog Small Brush, (1) Karin Herzog Silhouette, (1) Karin Herzog Tonus B12, and (1) Karin Herzog Large Brush with a total approximate retail value of $510.00
with a total approximate retail value of $42.45.
Click here for complete Official Rules.