Is there a care routine to maintain the effects of Ulthera for a long time?

I recently received Ultherapy and am currently recovering. I am looking into aftercare methods to prolong the effects as much as possible. I have been consistently using sunscreen and moisturizing, but I am wondering if that alone is sufficient. Some people mention following dietary habits or taking supplements that help with collagen production, while others say their satisfaction was higher when combined with proper skincare. For those of you who have received Ultherapy, what kind of post-treatment care do you follow? It would be very helpful if you could share any methods that actually helped you, or conversely, any habits you should avoid. I would also appreciate it if you could share your personal care tips for extending the duration of the results.