Home Cosmetic Science Talk Formulating Cold weather

  • Cold weather

    Posted by danielyau on November 16, 2014 at 10:04 pm

    what ingredients to be added into formulation when making products like cream, lotion, toner to Countries like Russia? Glycerin and?

    What % will be proper? Many thanks
    belassi replied 9 years, 4 months ago 5 Members · 4 Replies
  • 4 Replies
  • oldperry

    Member
    November 17, 2014 at 2:44 pm

    There’s not really some magical ingredient that works in all cases.  It just depends on your formula.  Propylene Glycol is an option for many things.  But also formulating products such that they are stable even after being frozen then thawed.

  • bobzchemist

    Member
    November 17, 2014 at 4:01 pm

    Look up freeze/thaw stability testing procedures. If you pass the stability testing, nothing else needs to be done to your product. If you do not, the strategies for improving stability are numerous, and which you pick depends on the product and the needs of the market that it’s being sold to. (For example - some waxes can add freeze/thaw stability - but adding more than a very little wax to an emulsion makes it feel horribly draggy on skin. If you are selling products for construction workers, they may not care. But others..?)

  • belassi

    Member
    November 17, 2014 at 4:18 pm

    Agree with Bob. Freeze/thaw test everything. Well, not shampoos and conditioners maybe!

  • zink

    Member
    November 18, 2014 at 3:36 am

    Some general guidelines for propylene glycol’s antifreeze properties in emulsions would be useful for me, to give you a starting point for testing.

Log in to reply.