Yes! Our treatments are meant for application year round. There is no need to halt your treatment during the summer, however, we recommend extra caution in the sun, as our treatments can make your skin more sensitive to sun exposure. Additionally, since sunspots and hyperpigmentation can develop due to lack of sun protection, it is imperative that you practice sun safety to maintain your results with our treatments. Regular application of a mineral SPF and additional sun protection (such as a hat or umbrella and avoiding sun peak hours 10 am - 2 pm) is highly recommended during these sunny summer months, alongside use of your treatment. Find out more about this at: https://www.musely.com/tips/Are-Sunspots-Permanent/30782709