what to use as a thickner in serum which also provide some add on values to serum. something like sk

i want to replace carbomer( edt2020 of lubrizol) with another thickner in my water based skin serum. i am serching for some ingredient which provide thickness along with some benifits to the formulation. i know about xanthan gum, ecogel by lucams myers. kindly sudgest me the ingredient and what add on benifit it can provide to formulation. along with dosage.


  • any reply will be greatly appriciated.
  • The best option is high molecular weight hyaluronic acid. It’s natural, acts like a humectant and performs well in presence of high concentration of active ingredients. Downside-price. If you don’t care about ‘natural’ label try seppuplus 400, great sensory, electrolite resistant. You won’t need more than 0.5% for a serum.
  • does hyaluronic acid be claimed as natural??
  • MicroformulationMicroformulation Member, Professional Chemist
    Define "natural." (There is no legal definition in the US or EU).

    Using the term blithely as if it has objective meaning is an obstacle to the R&D process.
    markfuller@microformulation.com Microformulation.com Microformulation Cosmetic Consulting provides Custom Formulations for both large Commercial accounts as well as smaller entrepreneurs. We can provide Naturally compliant Formulations under the NSF, NPA, Whole Foods and USDA Organic Certifications. BS.Pharm Albany College of Pharmacy, Union University.
  • Disclaimer, when I said it's "natural" I was referring a common perception of the consumer, rather than any legal or scientific definition.HA is mainly produced via bacterial fermentation (or could be animal origin). It is occured in human bodies, and as such, often marketed as "natural" whatever meaning it has for the end user. Xantham gum and hyaluronic acid are made by bacteria, sepiplus 400 (which I absolutely love) is synthesised in the lab. That is why I said, "if you don't care about it being labeled as natural". You can claim hyaluronic is "natural", but I can't imagine there is a way to justify that label for a polymer like sepiplus 400. The main reason why I like HA in serums, is it's resistnace to a high concentration of active ingredients. It will gel anything at 0.3-0.5. 
  • By the way I noticed that The Ordinary recently replaced Sepimax Zen to Sodium Hyaluronate Crosspolymer in several formulations. One of examples is low pH 30% AHA peel. It is very diffucult to gel something with a low pH and so, they were using Sepimax Zen, which is rather sticky (and they were getting complaints). When I looked at their LOI last time, I noticed they replaced it to Sodium Hyaluronate Crosspolymer. I have not worked with this form of HA, but I believe that it must be acting as a gel maker, because they don't have any other ingredients that can form a gel in the formula. Which is bringing me back to the point that HA, is pretty nice gel maker.
  • PerryPerry Administrator, Professional Chemist
    A couple of questions before I can answer.

    Why do you want to replace Carbomer?  Why not just add an additional ingredient to get whatever benefit you're looking to get?

  • @Perry want to replace carbomer because it gives bit sticky feeling. abd due to it when somebody with bit oily skin applies serum on face than due to stikyness of the product they get pimples on face. thats why want some ingredient which doesnot provide stickyness or provide least stickyness. 
  • BelassiBelassi Member, PCF student
    If I could deduce what was in your formula I might be able to be more use.
    Cosmetic Brand Creation. Concept to name to IMPI search to logo and brand registration. In-house graphic design inc. Pantone specs. Cosmetic label and box design & graphics.
  • ngarayeva001ngarayeva001 Member
    edited October 2018
    Carbomer isn’t sticky if you use the right amount Consider adding PEG-8 Dimethicone.  It will improve the sensory.
  • FekherFekher Member, Professional Chemist
    edited October 2018
    @dharmaraj take a look for cellulose gum like HEC , HMEC , HPC i think that they are suitable for your needs.
  • @Belassi actives i am useing is kakadu plum extract and tyrostat and limepearl of lucas myer 1.5%, 1%, and 1% respectively and useing 5% pg and 1% sodium pca and verstatil sl as a presevetive.
  • Sodium PCA can cause lose of viscocity for some polymers.
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