Written by OSEA Staff | Published June 28, 2025
It’s been just over a year since we launched our Hyaluronic Body Serum, and it’s quickly become one of our bestsellers. With two major awards to its name—Allure Best of Beauty 2024 and the National Eczema Association’s Seal of Acceptance—this formula has earned permanent top shelf-space in our body care routine.
To see how it’s really performing, we asked a few of our most devoted team members to share their honest thoughts. They considered everything from hydration and absorption to how their skin looked and felt after using it. If you’re thinking about adding a hyaluronic acid body serum to your summer ritual, start here. Without further ado, let’s get into it.

Alena Olorunfunmi
20s, Manager, Influencer Marketing & Content
Skin type: Normal & Combo
Feels Like:
Silky, hydrating, fresh, smooth.
The Experience:
As an esthetician, I’ve tested A LOT of body serums, and this is one of the only ones that sinks right in, isn't sticky, and you're not immediately reaching for a lotion to put on top. I love that it uses five molecular weights of hyaluronic acid. It’s instant gratification for dewy, dolphin skin. A little goes a long way. I also just really like the bottle—it’s so aesthetic.
The Results:
Hyaluronic Body Serum gives me a natural, healthy-looking glow. My skin looks smooth and hydrated. It’s the first step in my moisturizing body care routine. Perfect for summer, the formula is lightweight, non-greasy and easy to layer. I even use it on my daughter, who has eczema.
Summer Wellness Routine:
As a new mom, I don’t have downtime during the week, so weekends are when I really lean into self-care. I usually start the day with a workout—either at the gym or going on a long walk with my baby—then I clean the house and take a long shower. I use Salts of the Earth Body Scrub, then I layer on Hyaluronic Body Serum and Undaria Algae™ Body Oil post-shower. For my face, I go in with Hyaluronic Sea Serum and Dayglow Face Oil®, which leaves me so glowy, I don’t need to wear makeup. Sunday nights are usually Jazz in the Park with friends and family—everyone brings lawn chairs, ice buckets and snacks. It’s the perfect end to the week.

Sara Schmidt
40s, Packaging Design Coordinator
Skin type: Normal
Feels Like:
Lightweight, hydrating, visibly smoothing.
The Experience:
It took me a while to try the Hyaluronic Body Serum. I liked the idea of a face serum, but body serum seemed like an extra step I didn’t know I needed. Then the hot, humid Nashville summer rolled around, and my partner amped up the AC, and my skin started to feel dry and tight. Once I began using the Body Serum, my skin felt softer and more hydrated almost immediately. I spend a lot of time at the pool in the summer and now I always apply this after a day in the sun. The aloe is so refreshing! These days, I keep it on my partner’s side of the sink since he uses it just as much as I do. He loves that it’s fragrance-free.
The Results:
I just turned 40, and body care is more important to me than ever. I’ve seen a noticeable difference in how hydrated my skin looks and feels since I started using this. I like that the product is made with a lot of ingredients I already use on my face, like hyaluronic acid, niacinamide, peptides, and seaweed, of course. It’s very lightweight, so I’m not worried about it just sitting on my skin and rubbing off onto my clothes or transferring onto hot leather car seats. It soaks in right away, leaving behind a nice, healthy sheen. It absorbs fast but somehow manages to keep my skin hydrated all day.
Summer Wellness Routine:
I live in CST but work Pacific hours, so mornings are all about me-time. I wake up, have coffee and a Trader Joe’s green juice, and watch Good Morning America. I go for a walk, then shower using my Salts of the Earth Body Scrub, followed by Hyaluronic Body Serum and Undaria Algae™ Body Oil post-shower. I’ll also use Ocean Eyes® Serum, Seabiotic® Water Cream and Dayglow Face Oil®.I drink a lot of MiO-flavored water and break up my workday with walks in the sun.

Jo Jo Joss
20s, Manager, Growth Marketing
Skin type: Sensitive
Feels Like:
Silky, quenching, juicy, clean.
The Experience:
I’ll be honest––I was skeptical at first about using a body serum. But now I’m obsessed. It has this nice, thick, silky gel texture that feels refreshing and deeply hydrating without any heaviness. It doesn’t make me feel sticky or tacky and sinks into the skin nicely. I teach pilates and I've gotten all the girls in the studio hooked on it.
The Results:
From the start, I appreciated how easy it was to apply, and the results were significant. This serum makes my skin feel ultra-hydrated without layering anything on top. My skin looks dewy and healthy but never oily. Hyaluronic Body Serum does a faster, and frankly better, job hydrating and softening my skin than anything else I’ve been using. I also love that it’s fragrance-free and doesn’t irritate my sensitive skin.
Summer Wellness Routine:
Mornings usually start with pilates or a run, followed by a cool shower. Then I go in with Hyaluronic Body Serum, mist my face with Sea Minerals Mist, and use an ice roller. After that,I apply Ocean Eyes® Serum which I store in the fridge. I also make sure to keep my 40-ounce Stanley Tumbler full of water mixed with electrolytes and sip it throughout the day. I live in Colorado, and the air is hot and dry this time of year, so staying hydrated is a must.

Clare Sackllah
30s, Manager, Amazon
Skin type: Normal
Feels Like:
Hydrating, cooling, nourishing.
The Experience:
This is easily one of my favorite products. As a new mom, I don’t have a ton of time for body care, so I love that this gel serum dries almost instantly on my skin. I take really hot showers (probably not the best for my skin) and apply this right after. It feels cooling, almost soothing, the second it goes on. I use two pumps per leg, and by the time I get to the top, my whole body is dry. I almost feel like I’m not wearing anything but my skin looks super hydrated.
The Results:
I’m eight months postpartum, and I keep getting compliments on my skin—specifically the texture—which is huge for me since dewy and radiant are not words I would have previously used to describe it. Hyaluronic Body Serum has made a visible difference in my skin. It looks healthy—like, really healthy. Postpartum, my skin’s gotten more sensitive, so I love that this is fragrance-free and accepted by the National Eczema Association. My baby has eczema, so I never have to worry when we are skin-to-skin. That gives me so much peace of mind.
Summer Wellness Routine:
I wake up and drink two glasses of water on an empty stomach, (someone once told me it helps with digestion). Next I make coffee with whole milk. I don’t eat anything in the morning. Then I'm off to pilates. Where I live in Texas, it's almost always 90 degrees, so I’m sweating early. I jump in the shower right after and use Undaria Algae™ Body Wash, then Ocean Cleanser for my face. After that, it’s Hyaluronic Body Serum, followed by Undaria Algae™ Body Oil. The Body Oil makes my skin glow. It’s like makeup for my body—but without the shimmer. Then I get into comfy clothes, usually biker shorts and a tank. I’ll throw on an oversized oxford button-up shirt for my video calls.