Xeomin vs Botox 

Botox and Xeomin have the same active ingredient called Botulinium Toxin type A.  When injected into facial muscles this toxin blocks signals from the nerves, causing muscles to weaken and relax so they cannot contract.  The effect of this is to paralyze the treated part of the face causing lines and wrinkles to "disappear".   With both treatments results are usually seen within a week and can last 3 to 4 months. 

The main difference between Botox and Xeomin is in the way they are chemically prepared.  Botox has an accompanying protein that detaches itself after it is injected.  Xeomin has been nicknamed the "naked Botox" because it is free of additives.  In Xeomin the complexing proteins have been removed through extensive purification.  It is believed that the protein present in Botox may cause an immune reaction in the body after injecting; this may result in loss of effectiveness over time.  Because Xeomin has no complexing proteins, even repeated injections will not induce the formulation of neutralizing antibodies, leading to continued long-lasting results.   Xeomin may be of particular use in patients who have used Botox in the past but have become resistant.   

Which is Better?  There is very little difference between the two products.  Botox and Xeomin are both Botulinium Toxin Type A and have the same applications.  The simplest comparison would be that they are like identical twins wearing different outfits.