Oxford HealthspanBridging the gap between Eastern wisdom and Western science in the longevity space. First product: Primeadine, premium spermidine supplement.
Oxford Healthspan (oxfordhealthspan.com) has 26 customer reviews on Five Star Index, with an average rating of 4.7 out of 5.
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Personal Care · Orlando, Florida
Excellent
Personal Care · Grants Pass, Oregon
Excellent
Personal Care · Great Neck, NY
Excellent
Personal Care · Costa Mesa, California
Excellent
Showing 23 reviews with 5 stars · Clear filters
Danya B.
I've been taking Primeadine for inflammation since I have acne and I want to preserve my fertility. The first thing I noticed is a big jump on my deep sleep, and I feel good knowing my cells are renwing efficiently. Been taking it for 3 years and my acne decreased. Thank you
Valerie Van Horn M.
I’ve been taking Primedine for over 3 years, and it’s a game-changer. When I ran out recently, my sleep went completely haywire — even going to bed at 9 pm, I’d lie awake until 1 or 2 am. Within days of starting a new bottle, I was back to sleeping a full 8 hours. On top of that, it’s also helped with incontinence, which was an unexpected but amazing bonus. Supplements don’t always live up to the hype, but Primedine absolutely does — it works for me, and I couldn’t be happier.
Response from Oxford HealthspanFeb 17, 2026
Dear Valeria, Wow! Thank you so much for your amazing review! We’re absolutely thrilled to hear that you’re having such a positive experience with Primeadine. Our team works hard to create a high-quality product and provide the best possible customer support, so it truly means a lot to know we’ve met (or exceeded!) your expectations. If you ever have any questions or need assistance, we’re always here to help. Thank you again for being part of the Primeadine community! Warm regards, The Primeadine Team
Roddy M.
I have been using Primeadine for just under a year and have noticed a dramatic increase in my deep sleep after about a month of using the product regularly. I also feel more energised in my daily activities.
Response from Oxford HealthspanFeb 17, 2026
Dear Roddy, Thank you so much for sharing your experience and for being with Primeadine for nearly a year! We’re thrilled to hear you’ve noticed such a dramatic improvement in your deep sleep and that you’re feeling more energised in your daily activities. Consistency is key, so it’s fantastic to know that after regular use you’re seeing meaningful results. Your feedback truly means a lot to our team, and we’re grateful to have you as part of the Primeadine community. If you ever have any questions or need support, we’re always here to help. Wishing you continued great sleep and energy! Warm regards, The Primeadine Team
Frank B.
I have used Primeadine for a while now. As a guy I noticed some thinning out of my top corners. Since I use Spermidine I noticed a significant change in the positive direction. I get frequently asked if I color my hair, which I don`t. I realized as well that my sleep is better while using Primeadine. I really like that there is a gluten free choice as well. I just highly recommend Primeadine.
Carmen P.
I have been taking Primedine for over the past 2 months and I have noticed clear improvements on my sleep, levels of energy and my hair. I exercise twice, daily and I never felt so motivated and energetic as I am. Thank you Leslie Kenny for introducing me to this fantastic supplement.
Amrish
Have been taking Primadene now for over a year. Was initially skeptical but have been pleasantly surprised by the impact on my sleep and focus.
Kasia B.
I was considering getting a treatment at a trichological clinic for hair fall. No need for it now, as I have been taking Primeadine for a couple of months now, and I can already experience the benefits. I have seen new hair growth and my scalp feels healthier. Also my eyelashes have grown longer, and my skin and nails look better, too. Thank you, Oxford Healthspan!
Tanya I.
My hairdresser cannot stop raving about all my new hair growth. I've tried lots of different supplements for hair growth over the years - with no visible results. Finally, after using Primeadine for 6 months I can see a noticeable increase in hair thickness / fullness with lots of new baby hair sprouting out. I've even convinced my husband to start taking it!