Kylie Jenner has released her Kylie Cosmetics' liquid lipsticks and lip liners separately.

The 18-year-old beauty had been selling the pout products as a duo since the launch earlier this year but has now decided to stock them individually to allow her customers to mix and match the items.

Taking to Kylie Cosmetics' Instagram account, the brunette beauty wrote: ''because you have been asking we will also be releasing singles of my lip liner and matte liquid lip color for the first time ever!! Come by tomorrow and check out Candy and Mary Jo singles! (sic)''

The 'Keeping Up With the Kardashians' star is also planning to expand her online store to ensure stock, which usually sells out within minutes, is constantly available.

She explained: ''I know it hasn't always been the easiest thing to get my lip products and you have been amazing and patient as I have been working to make more product for all my customers and fans.

''You have been so great about setting your alarms, posting, sharing restock time and getting on the website to get what you want before it sells out and I appreciate that so much. But my dream is that you can buy my products when you want and it isn't always so hard.

''So over the last few months I have been working really hard with my team to expand and make enough product to try and keep my store open with product more often.

''I'm so excited to tell you that I think we are getting much closer to that and over the 4th of July weekend we are starting by adding more product than ever to the website so hopefully you can have a relaxed weekend and shop whenever it works for you.

''And hopefully this is how it will be going forward; I can't promise everything will always be available all the time but it is our goal to make sure the store is open on a more consistent basis as we are making more product every single day and adding it to the website.

''If we are out of stock please trust me that we are making more and will restock your favorite shades as soon as we can ... Thank you for sharing my passion for amazing makeup and being part of making my dreams come true. I have so many exciting things coming for you guys this summer and having more stock on my website more often is just the first step. Keep your eyes peeled. (sic)''