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Meet Elaine
certified nutrition consultant

Hi! My name is Elaine Kollar, Owner and Certified Nutrition Consultant with a Bachelor of Science degree in Biochemistry and Molecular Biology. Having over 12 years of experience consulting many integrative doctors and patients in Southern California, Top Function was developed to provide the highest-quality immune supplements to support a healthy and active lifestyle. 

I wanted people to have simple, clean immune supplements backed by science, research and proven results. Having worked as a nutritionist and consultant in the greater Los Angeles area I was able to learn what had worked and what didn’t work with patients alongside many functional medicine practitioners. In addition, I was able to see first-hand what ingredients and supplements can actually be causing you more than good! 


I developed a great desire to help people, just like you, have a strong immune system, which is the root cause to having an energetic and healthy life! This is why I developed Top Function.

At Top Function, we provide only the supplements you need at the high-quality you deserve. 

  • Are you tired of trying to figure out what supplements actually work for you and which ones do not? 

  • Do you want to strengthen and optimize your immune system? 

  • Do you want natural alternatives with simple ingredients and easy to use?

  • Do you want to decrease your chances of getting sick from viruses or bacteria?


Stop guessing or going after the latest fad, and look no further. 

  • High-quality

  • Doctor-grade

  • Doctor-approved

  • Simple ingredients

  • Gluten-free

  • Soy-free

  • Dairy-free

  • GMO-free

Sleep products - Top Function

Let your body perform at its best with Top Function!

Get yours today and start feeling the difference!!

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