"Ordered these for my husband and me a few weeks ago and we have both noticed a real difference in our energy. Ordering more soon."
More energy. Less tiredness. B vitamins that work.
Active, methylated B vitamins in high-impact doses, the forms your body actually absorbs. Made in Britain.
Backed by 200+ clinical studiesWhat Methylated B Complex Ultra supports
Science-backed, high-impact ingredients.
Clinical evidence
What the research shows
Published clinical studies behind the active nutrients we use.
younger memory
after 3 years
FACIT, double-blind, 818 adults
memorymood, over 12 months
group average, not just a few
Double-blind trial, active doses
moodless brain shrinkage
over 2 years
Oxford VITACOG, double-blind
brainhad less fatigue
vs 25 to 35% on placebo
Double-blind crossover trial
energylower homocysteine
part of your methylation cycle
McNulty et al. double-blind
methylationlower homocysteine
at a dose like ours
Pooled, 25 controlled trials
methylationResults from published clinical studies on the active nutrients and forms we use, not claims about the finished product. Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle.
Trusted by customers
who feel the difference every day.
"My partner and I both feel much more energetic after a few weeks. So much better than the store multivitamins. Buying again."
"I did not realise I was low in B12 until I started these. Ten weeks on and I feel so much better, more energy, more focus, up and ready for the day."
"I was tired most of the time. Taking this every morning I am not constantly tired anymore. A massive difference."
"My energy just feels better. I am not as tired through the day and I am getting more done without thinking about it."
"I had been feeling flat all the time. Since taking this my energy has picked up and I feel sharper, more like myself again."
"I have tried loads of supplements and most end up in the cupboard. This is one of the few I have stuck with. I feel more focused and sharper day to day."
"Excellent product. After a few weeks I have a lot more energy in the afternoons, which I really needed. Will buy again."
"Really impressed. I cannot believe how much these have helped me. Thank you to the Prime team for answering my questions."
"Really like these. I feel more awake and focused since I started taking them each morning."
"I have tried a few B vitamin supplements before and never really noticed much, but I have certainly noticed my energy levels. I have recommended this to friends."
"These have become part of my daily routine and I feel really good for it. So pleased I found a quality B complex made in Britain."
"A month in and I can honestly feel the difference. I have more energy through the day and feel really good taking them."
"Four months in and I feel great taking these every day. I have even got my husband on them too. Really happy with them."
"Good quality B vitamins and the team were really helpful with all of my questions. Thank you."
"I had been struggling with tiredness for a while. A few weeks on these and I have more energy and feel more like myself again."
"I didn't expect much but after a week or so I noticed I wasn't as exhausted by the end of the day. Just feels easier to get through things."
"I've tried a few supplements before and never stuck with them. This is one of the first where I've actually felt a difference, mainly with energy."
"Mornings used to be a struggle but they feel a bit smoother now. Not a huge change, just more consistent which I like."
"I've been taking it for about 3 weeks and feel less foggy at work. I'm getting through tasks quicker without overthinking everything."
"It's been good so far. I do feel a bit more energy and less drained, just wish I'd noticed it a bit sooner."
"Energy feels more level throughout the day. I'm not getting that dip in the afternoon like I used to."
"I bought this after feeling constantly tired and it's helped more than I expected. I just feel a bit more like myself again."
"I've tried quite a few B vitamins and never really stuck with them. This one just feels better, more steady energy and I don't get that mid-afternoon slump as much."
"Didn't expect much but after a couple of weeks I noticed I was a lot less tired after work. Small change but it's made a difference day to day."
"I mainly bought it for energy but I've actually felt a bit more focused as well. Just feel a bit more on it, especially in the mornings."
"It's good, definitely feel a bit more energy and less foggy. Not a massive change but enough that I'll keep taking it."
"I've been using this for about a month and I just feel more balanced. Hard to explain but I'm not as drained by the end of the day."
"I train a lot and normally feel wiped after work, but this has helped keep my energy more consistent. Doesn't feel like a stimulant, which I like."
"I was a bit sceptical but I do feel better on this. Less sluggish in the mornings and I don't rely on coffee as much."
"Honestly didn't expect to notice anything but I actually have. Feel a bit sharper and not as forgetful during the day."
"I've tried cheaper ones before and never noticed a difference. This one feels cleaner somehow, energy is just more even."
"Been taking it for a few weeks now and I'd say I just feel better overall. More energy and a bit more motivation to get things done."
"It's alright. I do feel a bit more energy and slightly less foggy, just not as much as I was hoping for. I'll probably finish the bottle and see how it goes."
"I've been taking this for about 5 weeks now. I didn't notice anything straight away, but over time I realised I wasn't as tired in the evenings. I used to just crash on the sofa and now I've got a bit more energy to actually do things."
"I've wasted a lot of money on supplements over the years. This is one of the few I've actually reordered. Nothing extreme, just feel more awake and less sluggish day to day."
"I work long hours and usually feel drained by mid-afternoon. Since taking this, I've definitely got more staying power. It's not a buzz, just more consistent energy."
"I didn't expect much if I'm honest. But I've been a bit less forgetful at work and just feel a bit sharper overall."
"I've been using it for a couple of months now. It's quite subtle but I feel more balanced, especially with energy. I'm not relying on coffee as much."
"It's decent. I've noticed a bit more energy and focus, just not as much as I hoped. Still better than others I've tried though."
"I bought this after a friend mentioned it. Took a week or so but I do feel less tired in the mornings. Getting up is a bit easier now."
"I train most days and work full time, so I'm usually knackered. This has helped take the edge off that constant tired feeling."
"I've tried cheaper B vitamins and never felt anything. This one feels different, hard to explain but I just feel more switched on."
"Been taking it for about 3 weeks. Energy is more stable and I'm not dipping in the afternoon like before."
"I'm quite sceptical with supplements but this has surprised me. I feel more alert during the day and less drained after work."
"I've been using it just over a month. I'd say the main difference is I don't feel as run down. It's subtle but definitely there."
"I normally hit a wall around 3pm. That's eased off quite a bit since starting this, which has been really helpful with work."
"I've stuck with this longer than anything else I've tried. I just feel a bit more clear headed and less foggy."
"Didn't think I'd notice anything but I actually have. Energy feels smoother and not up and down like before."
"I've been taking it for 6 weeks now. Looking back, I was more tired than I realised. I've definitely got more about me now."
"I like that it doesn't feel like a stimulant. Just gives me a bit more energy to get through the day without feeling wired."
"Mornings are a lot easier now. I used to feel really slow getting going, but that's improved quite a bit."
"I've tried loads of things for energy and this is one of the few I've actually noticed. Nothing crazy, just feel better overall."
Hear from our customers
Real people who take it every day.




Active B vitamins your body can actually use
Most B-complex supplements use cheap, synthetic forms your body has to convert first, and often can't. We start with the active, methylated forms, ready to absorb from your very first tablet. Just one a day.

Why I started Prime Vitality
Built from lived experience. Backed by better ingredients.
It started with a simple question: why do so many supplements promise the world but leave you feeling exactly the same?
After years of trying generic B-complex products and not feeling a difference, I set out to build a formula using the active, methylated forms of B vitamins your body can actually use.
Every batch is made in Britain to high quality standards, vegan, non-GMO, and designed for real life: one tablet, once a day.
Jackson, Founder
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