Botox is a safe prescription medication that is used to temporarily improve the look of moderate to severe forehead lines, crow’s feet lines, and frown lines between the eyebrows in adults. Small amounts of Botox cosmetic are injected into the areas of muscle responsible for the wrinkles. Botox cosmetic blocks the release of the chemical that causes these muscles to contract. Results of the procedure are fast, and you can see the difference in 7-10 days. Treatments usually last about three to four months.