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Lees wat reviewers zeggen

Beoordeeld met 5 van de 5 sterren

Primeadine - I have been taking this for around 5 weeks. I have a much deeper sense of grounded calm, better deeper and longer sleep, more stable mood and sharper focus. Certainly has been a real supp... Toon meer

Bedrijf heeft geantwoord

Beoordeeld met 3 van de 5 sterren

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... Toon meer

Bedrijf heeft geantwoord

Beoordeeld met 3 van de 5 sterren

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 befor... Toon meer

Bedrijf heeft geantwoord

Beoordeeld met 5 van de 5 sterren

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... Toon meer

Bedrijf heeft geantwoord

Bedrijfsgegevens

  1. Vitamine- en supplementenwinkel

Geschreven door het bedrijf

Bridging the gap between Eastern wisdom and Western science in the longevity space. First product: Primeadine, premium spermidine supplement.


Contactgegevens

4,2

Goed

TrustScore 4 uit 5

26 reviews

5 sterren
4 sterren
3 sterren
2 sterren
1 ster

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4,2

Alle reviews

(26)

2 reviews in de afgelopen 12 maanden

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Beoordeeld met 5 van de 5 sterren

I've been taking Primeadine for…

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

19 augustus 2026
Review zonder uitnodiging
Beoordeeld met 3 van de 5 sterren

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.

1 januari 2026
Review zonder uitnodiging
Logo Oxford Healthspan

Antwoord van Oxford Healthspan

Dear Carrie,

We’re truly sorry that you felt unheard during this process and that Primeadine Original did not work well for you. Digestive sensitivities can vary from person to person, and we completely understand how frustrating it is when a product doesn’t agree with you.

We’d also like to clarify what happened with the refund timing. Your original return request was submitted for one bottle. When additional bottles were later returned, our customer service team needed confirmation from the warehouse that four unopened bottles had been received before issuing the corresponding refund. That confirmation took longer than expected, which is why there was a delay in resolving the matter. We understand how that wait may have felt on your end, and we’re sorry for the frustration it caused.

As outlined in our return policy, we are able to refund unopened bottles within the stated return window. Three bottles were refunded promptly once processed, and the remaining bottle was addressed once warehouse verification was completed.

We regret that this experience did not meet your expectations and that Primeadine was not the right fit for you. We sincerely wish you the very best in finding a solution that works comfortably for your needs.

Kind regards,
The Primeadine Team

Beoordeeld met 5 van de 5 sterren

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.

11 augustus 2025
Logo Oxford Healthspan

Antwoord van Oxford Healthspan

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

Beoordeeld met 5 van de 5 sterren

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.

15 januari 2025
Review zonder uitnodiging
Logo Oxford Healthspan

Antwoord van Oxford Healthspan

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

Beoordeeld met 3 van de 5 sterren

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

7 december 2024
Review zonder uitnodiging
Logo Oxford Healthspan

Antwoord van Oxford Healthspan

Hi Dr Reid, thank you for your message. As for our pricing, we prioritize the highest quality, avoiding common additives like industrial seed oils, magnesium stearate, and talc often used in supplements. Unlike cheap synthetic spermidine often "cut" into products, we use food-derived spermidine sourced and manufactured in Japan under strict regulatory standards. Our products undergo rigorous third-party testing to ensure purity and effectiveness. This commitment to quality, like choosing the best ingredients for a child’s birthday cake, is our guiding philosophy. In terms of benefits, you can find out more here: https://oxfordhealthspan.com/blogs/aging-well/the-benefits-of-spermidine-a-full-breakdown. Finally, as you are a doctor, you are welcome to apply to our affiliate program, which would give you a discount off every order for personal use: https://oxfordhealthspan.com/pages/register-affiliate-account

Beoordeeld met 5 van de 5 sterren

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.

17 september 2023
Review zonder uitnodiging
Beoordeeld met 5 van de 5 sterren

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.

4 juni 2023
Review zonder uitnodiging
Beoordeeld met 5 van de 5 sterren

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!

7 mei 2023
Review zonder uitnodiging
Beoordeeld met 5 van de 5 sterren

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!

3 mei 2023
Review zonder uitnodiging
Beoordeeld met 1 van de 5 sterren

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.

8 juni 2022
Review zonder uitnodiging
Logo Oxford Healthspan

Antwoord van Oxford Healthspan

We are very sorry for your experience, but are you sure this was us and not another company with the word 'healthspan' in their name? We only send 1 email newsletter per month to our customers, fully comply with GDPR, and have an unsubscribe button at the bottom of our newsletter. Thank you for giving us this opportunity to make clear our email policy.

Beoordeeld met 5 van de 5 sterren

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.

5 april 2021
Review zonder uitnodiging
Beoordeeld met 5 van de 5 sterren

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.

31 maart 2021
Review zonder uitnodiging
Logo Oxford Healthspan

Antwoord van Oxford Healthspan

Thank you so much for sharing your experience, Jay!

Beoordeeld met 5 van de 5 sterren

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!

30 maart 2021
Review zonder uitnodiging
Logo Oxford Healthspan

Antwoord van Oxford Healthspan

Thank you so much for sharing your experience! So pleased you're seeing such great results, you're very welcome!

Beoordeeld met 5 van de 5 sterren

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!

30 maart 2021
Review zonder uitnodiging
Logo Oxford Healthspan

Antwoord van Oxford Healthspan

Thank you so much for sharing your experience, Emma! So pleased both you and your husband are experiencing the benefits already!

Beoordeeld met 5 van de 5 sterren

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.

30 maart 2021
Review zonder uitnodiging
Logo Oxford Healthspan

Antwoord van Oxford Healthspan

Thank you for sharing your experience, Mark - so pleased you're having such great results!

Beoordeeld met 5 van de 5 sterren

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.

7 maart 2021
Review zonder uitnodiging
Logo Oxford Healthspan

Antwoord van Oxford Healthspan

What a great way to consume spermidine, Rosie! Very happy to hear you're experiencing these benefits. Sleep is the fountain of longevity!

Beoordeeld met 5 van de 5 sterren

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 :-)

3 maart 2021
Review zonder uitnodiging
Beoordeeld met 5 van de 5 sterren

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!

25 februari 2021
Review zonder uitnodiging
Logo Oxford Healthspan

Antwoord van Oxford Healthspan

Thank you so much for sharing your experience Laurence, so happy to hear you're seeing such great benefits from taking Primeadine!

Beoordeeld met 5 van de 5 sterren

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.

20 februari 2021
Review zonder uitnodiging

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