Trust PlaneTrustPlane
Oxford Healthspan logo

Oxford Healthspan

4.725 reviews
Last reviewed: Feb 2, 2026

Do you agree with Oxford Healthspan's TrustScore? Voice your opinion today and hear what 25 customers have already said.

www.oxfordhealthspan.comMember since Mar 2026

Oxford Healthspan is an online company. Based on 25 reviews on TrustPlane, it has an average rating of 4.7 out of 5 stars. Last reviewed February 2, 2026.

Customer Reviews

Write a Review
Filter:
25 reviews

Everything was finally refunded

If I could give zero stars I would have. I had digestive issues with primeadine original. I ordered 5 bottles. I returned 4 unopened bottles after having these issues. But they only refunded 3 bottles. I have been trying for over a month to get the refund for the 4th bottle They don’t guarantee their products as I was only permitted to return unopened bottles. I have contacted Leslie Kay in customer service several times and sent at least 10 emails without any response in solving this problem. It is rhe worst customer service I have ever experienced. Please DO NOT order from this company unless you know you already have no issues with their products.

carrie cerone
Was this helpful?

Primeadine absolutely is worth it. I will never run out again

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.

Valerie Van Horn Murphy
Was this helpful?

Primeadine dramatically boosted my deep sleep

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.

Roddy McDowall
Was this helpful?

Your product prohibits me spending £75…

Your product prohibits me spending £75 per month and I wonder what is the longer term benefit of taking it for several months if I can't afford taking it longer term? I would need this answered before I would consider taking it at all. many thanks Dr Reid

Tracey
Was this helpful?

From a guy

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.

Frank Bochmann
Was this helpful?

Primedine works

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.

Carmen Pinon
Was this helpful?

Have been taking Primadene now for over…

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.

Amrish
Was this helpful?

Truly astonishing results

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!

Kasia Benda
Was this helpful?

My hairdresser cannot stop raving about…

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!

Tanya Irfan
Was this helpful?

Don't trust

I am not from US, never heard of this company but getting Spam, Newsletters without any option to unsubscribe.Don't trust any company that uses illegal methods like this.

Ji
Was this helpful?

Spermidine makes me feel good

After using Spermidine along with NAD+, I have not only noticed increased daily energy, but also significant improved hair and nail quality. I’m very happy with it, and will definitely continue take it as long as I have the possibility.

Familjen D
Was this helpful?

This is an Amazing Supplement

This is an Amazing Supplement. Science-based modality to trigger autophagy. Delivery was prompt and service was excellent. Was easy to reach.

Jayanth Narayanan
Was this helpful?

Primeadine improves sleep, nails and hair!

I am 61 yo and have been taking 5 capsules of Primeadine for about 6 months. My Oura ring is tracking sleep scores in the 80s-90s, which I learned is super high for someone of my age range. My nails were dry and splitting, and now they are improved. My sparkling grays are reduced! Since there are no other changes in my life, I have to believe it is the Primeadine! Thank you for this great product!

RwsCalifornia
Was this helpful?

I started taking Primeadine recently…

I started taking Primeadine recently and had expected that it would take a while to experience any benefits, Instead, the Circadian reset was almost instant and I slept better than in years, waking up feeling rested and energetic. My husband has had a similar experience. I cannot recommend this wonderful supplement highly enough. Thank you, Leslie!

Emma Menell
Was this helpful?

Love It

I'm very happy with spermidine. My most significant improvement is my bald spot is almost gone.This is in less than six months!I haven't experienced the sleep improvement but I already have healthy sleeping habits so no surprise there.I absolutely love the product and highly recommend it.

MOT Mark
Was this helpful?

Spermidine.

I cannot express the difference in my general well-being since I added Spemidine to my daily kefir smoothie. My hair has grown, nails are stronger but the most significant change is the quality of my sleep. I sleep well and deeply. It’s incredible.

Rosie Farr
Was this helpful?

Was surprised, but Primeadine really works!

Too many products on the market claiming incredible results, so I was not excited at first... my health is great, but my sleep is bad, too much stress, sleeping 6-7 hours with little deep sleep and was waking up 3-4 times per night... So my girlfriend got me Primeadine... I began taking 1 tablet with my meals (3 meals per day)... was lazy about it, not taking it regularly, just when I remembered... Then my girlfriend told me I should be taking all 3 tabs with my last meal in the eve... she said it will improve my sleep... yeah, yeah... I heard such stories before... then I got Covid... hmmm. It felt just like the flu, but I tested positive for Covid... yet I had my taste and smell and all signs of the flu... anyway, nobody has flu these days, right? So, on my second day of Covid, when I was feeling worst, I started taking 3 tabs of Primeadine in the eve... I thought I'd try something new... I took the 3 tabs at 8 pm, together with my collagen, B5, and quercetin... and I slept like a baby... woke up feeling much better... hmm,... so I thought I'd try it again... and I slept again... and then I tried it again..Now, 3 weeks later I'm still sleeping... taking 3 tabs of Primeadine with my last meal.. and soon after I get sleepy... was never sleepy before... even though I take 3mg of Melatonin before bed every night... and they say Primeadine has all these other benefits, so I guess worth taking... I have no other problems than sleep, so can't tell you what else it does, but apparently also great with Autophagy, which means great for EVERYTHING concerning overall HEALTH... so, very happy to be sleeping again... I guess sleep is also related to EVERYTHING... so I guess Primeadine is helping me with everything hehe.... am happy :-)

Joseph Rain
Was this helpful?

Primeadine is a life changer

I have always been a poor sleeper and was really worried about it. My deep sleep rarely reached 30 minutes at night, even though I was doing everything right. Then I heard about Primeadine.... The first morning after taking it, my sleep score had improved tremendously and my deep sleep was of 1h16mn! I just couldn’t believe it, only after one take! Last night was my second night and my deep sleep reading showed 1h15mn!I really am incredibly impressed and so happy! I wake up refreshed, full of energy and can’t wait to experience all the other benefits this product has. Primeadine is definitely a life changer!

Laurence Due Garde
Was this helpful?

Spermidine for improving your health and rejuvenate your body…

I’m a biohacker and test everything that eliminates aging and diseases. I’m intermittent fasting for ages, so my body cleanses out ill and dead cells every day. But I didn’t know that there’s a supplement which helps to do the same, Spermidine! Now that I take it every day for last 3 months with the last meal a day, it became my favorite antiaging supplement! Why is that?WHAT DID I NOTICE AFTER 3 MONTHS OF TAKING SPERMIDINE?First and most important thing, my sleep was improved ! I was never sleeping a lot, 5-6h max a night, it seemed like my body didn’t need it more. After supplementing with Spermidine, I’ve noticed (via Oura ring app), my deep and REM sleep improved enormously! For those who use Oura ring & app, my Sleep scores are very high - every night 90+, my deep and REM sleep are between 2 and 3 hours long! My nails are so firm that I can barely shape them.My skin is even more beautiful and glowing. If you want to improve your health and rejuvenate your body, I suggest to follow antiaging protocol with Spermidine/Primeadine.

Magdalena Groselj
Was this helpful?

Better sleep, hair, nails

I've been using Primeadine for over 3 months now. Almost instantly, I noticed an improvement in my sleep. I take it before bed time and my sleep scores (measured on my Sleep Cycle app in my iPhone) have increased from the 70's to the high 80s / low 90s. I've noticed that I have much more vivid dreams and I wake up feeling more rested. Additionally, my hair loss has reduced and I can see a lot more new growth - even my eye lashes are thicker! My nail are also stronger and more glossy.

Sonia L
Was this helpful?
Cite this page

According to TrustPlane, Oxford Healthspan has a 4.7/5 rating based on 25 verified reviews as of April 2026. Source: trustplane.app/company/oxfordhealthspan-com