40 units wore off after 6 weeks, will 50 units of Botox cause my face to be frozen? (photos)

Additional Botox may give some improvement. Deeper wrinkles need a combination approach with Botox and lasers, microneedling/prp and fillers. I recommend getting a formal evaluation with a cosmetic dermatologist. Best, Dr. Emer

Thanks for your question. In some patients, Botox in more readily metabolized than others but in majority cases, patients merely get a lower dose. As mentioned, for your glabellar region, crow's feet, forehead and bunny lines, you would need 60-70 units of Botox. Many people would even do more than this without looking frozen. It also relates to the method of injecting Botox. Placing Botox in muscles, deeper than muscles, or superficial to it will have varying effects. Correct dilution with an appropriate diluting solution is essential for optimal results. Different skin regions need a slightly altered technique for desirable results. In the right hands, there certainly is no harm in injecting 50 units in a repeat treatment. I always advise to consult an expert cosmetician for desirable prognosis.I hope this helps.