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Jan Marini Skin Research C-ESTA Serum

  • 9.3
  • 4 reviews 4 reviews
  • Read all Jan Marini Skin Research C-ESTA Serum reviews
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Jan Marini Skin Research C-ESTA Serum 9.3 out of 10 based on 4 ratings. 4 user reviews.

Jan Marini Skin Research C-ESTA Serum Reviews

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  • 9

    Amazing for oily skin!

    toolgirl40 (15 reviews)
    I have been using the entire 5-step line for a week, and although I had problems with severe drying and flakiness, this is one product that I really love. I use it on my forehead and down the bridge of my nose only, and I noticed improvements in the first 2 days. It's amazing for oil control, and though I didn't have "bad" skin, my forehead was slightly bumpy, and it is nice and smooth now. I will definitely continue to use this product, and for me, a little goes a long way so it's not a huge amount of money to put out. — 10 months, 1 week ago

    This review is:  Helpful  |  Not helpful  |  Inappropriate  |  0 of 0 people said helpful

  • 10

    Great for Collagen

    al_tinker (23 reviews)
    have used Jan Marini off and on for the last 4 years. Every time I use Jan Marini, my skin clears up. And, when I do break out, my acne doesn't stay for long. The Jan Marini system uses 5 products -- the bioglycolic cleanser, C-Esta, Bioclear, Moisturizer and Sunscreen. When I first started using this product, it real...lt made my skin dry and flaky because the concentration seemed high. That cleared up in about 3 weeks, and my skin was moister and more hydrated underneath. This serum can tingle a bit when it goes on initially, but once your skin gets used to it, that tingling goes away. Jan's webinars state that this form of Vitamin C has been shown in tests to be stable for 2 years. So, when you buy these products, look at the Expiration date underneath. With the serum, make sure you get a fresh product with the expiration date out a long time. If you are within a couple of months of expiration, the product can be gritty and yucky. I like the serum better than the cream, but the cream is nice. — 1 year, 2 months ago

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  • Buying Guide

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  • 9

    love it

    platinum (55 reviews)
    Jan Marini has done it again. I have been using C-Esta for about three weeks and I can already see a difference in my skin. The pores are tighter and the overall texture of my skin looks terrific. I would recommend this product for anyone who cares about the long term health of their skin. — 3 years, 8 months ago

    This review is:  Helpful  |  Not helpful  |  Inappropriate  |  2 of 2 people said helpful

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Where To Buy

  • Buy it from
    $90.00 at Skin-Etc
  • Buy it from
    $90.00 at Spalook.com
  • Buy it from
    $90.00 at SkinStore.com

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