Dexter‘s Julie Benz wowed her social media followers with her rock-hard abs, as she donned a green bikini in a recent post.

The star, who turned 54 on May 1, celebrated her birthday by proving that age is just a number.

Julie, who also rocked a fedora hat and sleek shades in the post, enjoyed a poolside day with her friend and captioned the shots: “This is what strong looks like. 53 (almost 54) & 59.”

Followers cheered Julie on and commented on her youthful appearance. One person wrote: “Wow, stunning ladies,” while another wrote: “This is what strong and gorgeousness looks like.”

A third fan joked: “Ok we’re going to need to see some birth certificates for proof of age because this looks like a pic of two college students.”

Julie’s fitness routine

Julie is a huge fan of cycling to quickly increase her heart beat at a rapid pace.

She revealed to Self: “Indoor cycling gives me the calorie burn that I need and works my fast twitch muscles, while Pilates gives me the muscle-building slow burn and also increases my flexibility. Both are extremely tough core workouts and they complement each other perfectly.” 

In order to challenge herself even more, the actress adds in resistance bands to her additional floor workouts. 

Her favorite exercise is doing a plank while taking turns raising each leg up high in the air behind her.

Julie commented: “This move is like wearing full-body Spanx—it tightens EVERYTHING! I travel a lot and I always take my resistance bands with me so I can do this move anywhere.”

She also enjoys trampoline workouts, as well as strength and weight training. The entertainer enjoys going out for a walk in nature while listening to podcasts on her lighter days.

Julie’s skincare routine

Julie makes sure to not only care for her body, but also her skin. Her biggest go-to is consistently wearing sunscreen as well as taking vitamins that help her glow from within.

She shared with E! News: “[Anti-aging phytoceramides vitamins] help hydrate my skin from the inside out.”

The star is also a huge fan of Murad’s Resurgence Intensive Age-Diffusing Serum, sharing: “This is a miracle worker that keeps my skin balanced and helps combat hormonal aging.”

On top of that, she also consistently uses the brand’s Age-Balancing Night Cream, adding: “This night cream offers ultra-hydration while encouraging cell turnover [and] it keeps my skin hydrated without causing breakouts.”