← Back to product
Customer Reviews
Vitamin D3+K2 Supplement - Verified Purchases Only
4.5
★★★★½
840+ reviews
JC
James C.
June 14, 2026
★★★★★
✓ Verified Purchase
Blood test confirmed it
GP ran blood tests after 8 weeks. Vitamin D went from deficient to optimal. She said it was one of the fastest improvements she had seen. The K2 combination is why, it actually directs the calcium properly rather than just floating around doing nothing.
52 people found this helpful - Helpful
OT
Oliver T.
June 12, 2026
★★★★★
✓ Verified Purchase
Part of the height stack
Taking this alongside the Astragalus as part of the full growth stack. The logic is simple, bone density is what you need to grow. D3 and K2 together are the gold standard for that. 4 months in and up 2cm at 16.
44 people found this helpful - Helpful
SL
Sarah L.
June 10, 2026
★★★★★
✓ Verified Purchase
Energy levels transformed
Did not realise how deficient I was until I actually supplemented properly. Energy is completely different now. Waking up feeling rested, not dragging myself through afternoons. Vitamin D deficiency is genuinely more common than people think.
38 people found this helpful - Helpful
MB
Marcus B.
June 8, 2026
★★★★★
✓ Verified Purchase
My doctor recommended D3 K2 combo and I found this
Doctor told me to take D3 with K2 for bone health. Most supplements only have D3 on its own. This one has both in the right ratio. Job done.
29 people found this helpful - Helpful
BH
Ben H.
June 5, 2026
★★★★★
✓ Verified Purchase
Vegan D3 is rare and actually works
Most D3 comes from lanolin in sheep wool. This one is fully vegan which is incredibly rare. And it still works just as well, better actually based on my bloodwork. Zero compromise.
41 people found this helpful - Helpful
RP
Ryan P.
June 3, 2026
★★★★★
✓ Verified Purchase
15 and taking the full stack
Parents bought the full height stack for me after doing their research. The D3 K2 element is specifically for bone mineralisation which is crucial for height. 5 months in and the results speak for themselves. Up nearly 3cm.
67 people found this helpful - Helpful
HK
Harry K.
May 30, 2026
★★★★★
✓ Verified Purchase
Mood lifted noticeably
Vitamin D is literally a hormone precursor. When you are deficient your mood tanks and you do not even know why. Been on this 6 weeks and the difference is like someone turned the lights on. Sleep better too.
33 people found this helpful - Helpful
TF
Tom F.
May 27, 2026
★★★★★
✓ Verified Purchase
Third bottle
Third bottle. Not stopping.
18 people found this helpful - Helpful
LN
Lucy N.
May 24, 2026
★★★★★
✓ Verified Purchase
Best winter I have had in years
Started October, made it to June with zero illness. Usually get at least 2 colds. Vitamin D and immune function are directly linked and this proves it. Taking it year round now regardless of season.
47 people found this helpful - Helpful
AC
Alex C.
May 21, 2026
★★★★★
✓ Verified Purchase
The K2 is what makes this special
I have been researching D3 for years and the K2 pairing is the thing most people miss. K2 tells your body to put the calcium in your bones rather than your arteries. Without K2 you are potentially causing harm. This formula has both sorted.
58 people found this helpful - Helpful
WT
Will T.
May 18, 2026
★★★★★
✓ Verified Purchase
17 and in the stack for bones
My mate told me K2 and D3 are essential for bone growth not just density. Taking all three supplements together. Up 1.5cm in 3 months. Cannot attribute it all to one product but the stack as a whole is working.
24 people found this helpful - Helpful
EW
Ethan W.
May 15, 2026
★★★★★
✓ Verified Purchase
Sleep quality improved without expecting it
Bought this for bone and immune support. Sleep quality as a side effect was not something I anticipated. Within 3 weeks I was falling asleep faster and waking up less in the night. Happy accident.
31 people found this helpful - Helpful
CR
Charlie R.
May 12, 2026
★★★★★
✓ Verified Purchase
Gym recovery noticeably faster
I lift 5 times a week. Muscle recovery depends on bone and tissue health and both need vitamin D. Noticed the difference at about week 4. Less DOMS, better session to session performance. Part of my permanent stack now.
35 people found this helpful - Helpful
NB
Noah B.
May 9, 2026
★★★★★
✓ Verified Purchase
16 years old and taking this seriously
I want to maximise my height potential while my growth plates are still open. Read everything I could find about what actually works scientifically. D3 K2 for bone mineralisation is non negotiable if you are serious about this.
43 people found this helpful - Helpful
KO
Karen O.
May 6, 2026
★★★★★
✓ Verified Purchase
Bought for my teenage son
My son is 14 and I did a lot of research before buying anything. The D3 K2 combination is recommended by paediatric nutritionists for growing children. He has more energy at school and seems to be having a growth spurt. Whether that is the supplement or timing I cannot say but I am not stopping it.
56 people found this helpful - Helpful
FJ
Felix J.
May 3, 2026
★★★★★
✓ Verified Purchase
Finally on my second bottle
Ran out for two weeks before reordering. Noticed the difference when I stopped. Energy dropped, sleep went worse. Put it back in and within a week it came back. That is how I know it actually works.
27 people found this helpful - Helpful
JA
Jake A.
April 29, 2026
★★★★★
✓ Verified Purchase
Taken by half my football team now
I mentioned this to my football coach and he looked into it. Now half our under 18s squad are on it. The bone density support is relevant for any sport involving physical contact. Coach has noticed improvement in recovery time across the board.
61 people found this helpful - Helpful
PM
Peter M.
April 26, 2026
★★★★★
✓ Verified Purchase
Genuinely changed how I feel day to day
I am 38 and have been vitamin D deficient for years without knowing. Six weeks on this and I feel like a different person. My wife asked what had changed. I told her. She ordered some the same day.
39 people found this helpful - Helpful
ZK
Zach K.
April 23, 2026
★★★★★
✓ Verified Purchase
No more afternoon crashes
The 3pm energy crash is gone. Completely. I used to need coffee to get through afternoons. Week 4 on this and I do not need it anymore. Cannot overstate how much better my days are now.
48 people found this helpful - Helpful
IN
Ian N.
April 20, 2026
★★★★★
✓ Verified Purchase
Works
Works.
12 people found this helpful - Helpful
DL
Dan L.
April 17, 2026
★★★★★
✓ Verified Purchase
Stacking all three supplements
You need all three if you are serious about height. Astragalus for IGF-1. D3 K2 for bone density and mineralisation. Magnesium for deep sleep and growth hormone release. Skip one and you are leaving results on the table. This one specifically is doing what it should.
72 people found this helpful - Helpful
GF
George F.
April 14, 2026
★★★★★
✓ Verified Purchase
My GP said take D3 with K2 and nothing else had both
Searched everywhere for a D3 K2 combined supplement that is actually clean. Most have fillers, artificial colours or non vegan D3. This one ticks every box. GP was satisfied when I showed her the label.
34 people found this helpful - Helpful
CM
Connor M.
April 11, 2026
★★★★★
✓ Verified Purchase
17 and growing faster than expected
At 17 I was not expecting huge results but the full stack has been incredible. This specifically for the bone side. 2.5cm in 5 months. My dad is 6ft and I think I am going to get there.
53 people found this helpful - Helpful
AV
Amy V.
April 8, 2026
★★★★★
✓ Verified Purchase
Anxiety noticeably lower
Vitamin D deficiency and anxiety are directly linked. Did not know this until I started researching why my mood was always low in winter. 6 weeks on this and the seasonal dip has not happened. Huge for my mental health.
41 people found this helpful - Helpful
RW
Rory W.
April 5, 2026
★★★★★
✓ Verified Purchase
My mum bought it, I thought it was stupid, I was wrong
Mum got this for the whole family. I ignored it for a month then started taking it out of laziness. Two months later I feel genuinely better and my growth at 15 seems to have picked up. She was right. Do not tell her I said that.
86 people found this helpful - Helpful
BM
Billy M.
April 2, 2026
★★★★★
✓ Verified Purchase
Proper research went into this formula
The ratio of D3 to K2 in this is based on actual clinical research. It is not random amounts thrown together. You can tell someone who knows what they are doing made this. Bloodwork supports it too.
29 people found this helpful - Helpful
JR
Joel R.
March 29, 2026
★★★★★
✓ Verified Purchase
Energy up, mood up, focus up
All three went up within the first month. I live in Scotland so sunlight is basically theoretical. I was absolutely deficient and had no idea. This fixed it.
37 people found this helpful - Helpful
TH
Thomas H.
March 25, 2026
★★★★★
✓ Verified Purchase
Zero synthetic fillers
I read every label. Most D3 K2 supplements are loaded with stuff you do not want. Magnesium stearate, silicon dioxide, artificial colours. This one is clean. Zero synthetic fillers as stated. Exactly what I was looking for.
22 people found this helpful - Helpful
OM
Oscar M.
March 21, 2026
★★★★★
✓ Verified Purchase
18 and taking bones seriously
Read that your bone density peaks in your early 20s. Everything you do now determines what you have for the rest of your life. Taking this seriously at 18 feels like the right call. Growing taller too which is a bonus.
45 people found this helpful - Helpful
ES
Ellie S.
March 17, 2026
★★★★★
✓ Verified Purchase
My sister and I both take this
I recommended it to my sister after noticing how much better I felt. She is 15 and we are both taking the full stack. Neither of us has been ill since November. Parents are impressed enough that my mum started taking it too for the bone health benefits.
33 people found this helpful - Helpful
HO
Henry O.
March 13, 2026
★★★★★
✓ Verified Purchase
Better than I expected honestly
Went in sceptical because there is so much rubbish in the supplement industry. Three months later my bloodwork is great and I feel better than I have in years. The D3 specifically hit fast, within two weeks I noticed a difference.
27 people found this helpful - Helpful
MP
Max P.
March 9, 2026
★★★★★
✓ Verified Purchase
Up 2cm at 16
Taking the whole stack. This one handles bone density. Cannot separate each supplement but the stack as a whole has me up 2cm in 4 months. That is above average natural growth rate for my age so something is working.
49 people found this helpful - Helpful
LV
Luca V.
March 5, 2026
★★★★★
✓ Verified Purchase
Subscription sorted
On subscribe and save now. This is a permanent part of my routine and the discount makes it even more worth it. Simple product that does exactly what it says.
16 people found this helpful - Helpful
SW
Sam W.
March 1, 2026
★★★★★
✓ Verified Purchase
Physician recommended D3 K2 specifically
My doctor specifically said D3 without K2 can cause calcium to accumulate in the wrong places. She recommended the combination. This is one of the only clean vegan options that has both. She approved the label when I showed her.
63 people found this helpful - Helpful
AT
Ash T.
February 25, 2026
★★★★★
✓ Verified Purchase
4 months in and not stopping
Energy is the best it has been in years. Blood levels confirmed D3 is now optimal. Sleep is better which affects everything else. I have recommended this to everyone I know who works indoors.
21 people found this helpful - Helpful
DB
Dylan B.
February 21, 2026
★★★★★
✓ Verified Purchase
17 doing the full stack properly
Three supplements. Morning routine. Every single day for 5 months. Up 2cm and I have not even finished the growth phase yet. D3 K2 for the bones, Astragalus for IGF-1, Magnesium for the sleep. It is not complicated if you are consistent.
77 people found this helpful - Helpful
NH
Nick H.
February 17, 2026
★★★★★
✓ Verified Purchase
Immune system is solid now
Spent most of last winter ill. This winter I have had zero sick days. Works out and my vitamin D levels were shown to be completely optimal at my last checkup. The K2 pairing is what makes it actually absorb properly.
36 people found this helpful - Helpful
PO
Phil O.
February 13, 2026
★★★★★
✓ Verified Purchase
Changed my mornings completely
Two capsules with breakfast. That is it. By week 3 I was waking up naturally before my alarm feeling rested. Have not had that happen since I was a teenager. Vitamin D is not optional if you live in Northern Europe.
42 people found this helpful - Helpful
KJ
Karl J.
February 9, 2026
★★★★★
✓ Verified Purchase
Partner noticed before I did
She asked what I had changed because I seemed happier and more energetic. I mentioned the supplement. She started taking it too. Six weeks later she said the same thing. Good product.
28 people found this helpful - Helpful
WF
Will F.
February 5, 2026
★★★★★
✓ Verified Purchase
Biology student here, the science is real
I study biochemistry. The relationship between vitamin D, K2 and calcium metabolism is well established in the literature. This formula gets the ratio right. Taking it myself and my bone density scan at my last checkup showed significant improvement from 6 months ago.
81 people found this helpful - Helpful
ZT
Zak T.
February 1, 2026
★★★★★
✓ Verified Purchase
Grew an inch on the full stack
Grew an inch. 18 years old. Thought I was done. This was the D3 K2 piece of the puzzle.
19 people found this helpful - Helpful
MN
Matt N.
January 28, 2026
★★★★★
✓ Verified Purchase
100% vegan and it still works better than the others
Previous D3 supplements I tried were not vegan. Switched to this and my bloodwork is actually better than it was before. Clean product, no compromise. Will not buy anything else now.
31 people found this helpful - Helpful
JD
James D.
June 13, 2026
★★★★☆
✓ Verified Purchase
Good product, delivery took a while
Product is solid. Energy is better and sleep quality has improved. Delivery took about 3 weeks which was longer than I expected. Dropped a star for that but the product itself deserves 5.
14 people found this helpful - Helpful
CL
Chris L.
June 9, 2026
★★★★☆
✓ Verified Purchase
Solid but takes patience
Three weeks before I noticed anything. Once it kicked in the energy improvement was real. Give it a full month minimum before judging.
11 people found this helpful - Helpful
GP
George P.
June 5, 2026
★★★★☆
✓ Verified Purchase
Part of the height stack, doing its job
Cannot isolate the effect of this one supplement from the full stack but the results as a whole are undeniable. This is the bone piece and I trust it is doing what it should based on the research.
17 people found this helpful - Helpful
TG
Tom G.
June 1, 2026
★★★★☆
✓ Verified Purchase
Good all round
Energy up, mood better, sleep improved. No height measurements yet as I am only 6 weeks in but the foundation is clearly being laid. Fourth star lost only because the capsules are a bit large.
9 people found this helpful - Helpful
IM
Isaac M.
May 28, 2026
★★★★☆
✓ Verified Purchase
Notice when I miss a day
Sleep goes slightly worse if I skip. Energy is slightly lower. That is how I know it is working. Four stars because I wish the bottle had more capsules, 60 goes fast at 2 a day.
22 people found this helpful - Helpful
AB2
Aaron B.
May 23, 2026
★★★★☆
✓ Verified Purchase
Works, shipping was the only issue
Product gets a 5 but shipping knocked it to 4. Three weeks to arrive is too long. Everything else is great though, no complaints on quality, taste, results.
13 people found this helpful - Helpful
OD
Owen D.
May 18, 2026
★★★★☆
✓ Verified Purchase
Consistent results over 3 months
Nothing dramatic, just consistently better. Energy slightly up, mood slightly up, sleep slightly better. All of those together make a noticeable difference to your day. Good product.
18 people found this helpful - Helpful
FN
Finn N.
May 13, 2026
★★★★☆
✓ Verified Purchase
Good for the price
Comparable to products costing twice as much. The vegan D3 is the main thing that keeps me here because the alternatives either are not clean or are not vegan. Worth the money.
15 people found this helpful - Helpful
HC2
Henry C.
May 8, 2026
★★★★☆
✓ Verified Purchase
Happy with it overall
Energy and mood are better. Would like to see slightly more D3 per capsule but the K2 pairing more than compensates. Bloodwork after 8 weeks showed D levels had improved significantly.
20 people found this helpful - Helpful
JL
Jake L.
May 3, 2026
★★★★☆
✓ Verified Purchase
Works better than previous D3 brands
The K2 inclusion is the difference. Everything I had before this was just D3 alone and my bloodwork was still low. This is the first D3 supplement where my levels actually hit the optimal range.
26 people found this helpful - Helpful
MW2
Matt W.
April 28, 2026
★★★★☆
✓ Verified Purchase
Good supplement, takes a few weeks
Two weeks nothing. Then week three hit and I noticed the difference. Stick with it. The K2 D3 combination is not instant but it is real.
10 people found this helpful - Helpful
PT
Paul T.
June 11, 2026
★★★☆☆
✓ Verified Purchase
Too early to say
4 weeks in. Slight energy improvement maybe. No bloodwork done yet so cannot confirm anything. Will update at 3 months.
6 people found this helpful - Helpful
LW
Liam W.
June 7, 2026
★★★☆☆
✓ Verified Purchase
Decent but shipping was slow
Took nearly a month to arrive. Product seems fine, energy is slightly better. Would give more stars if the delivery was faster. Will try reordering to see if it was a one off.
7 people found this helpful - Helpful
BO
Ben O.
June 2, 2026
★★★☆☆
✓ Verified Purchase
Mixed on this one
Energy is possibly slightly better but nothing dramatic in 6 weeks. Height is not my goal so I am judging on energy and wellness which are hard to measure. Will give it another few weeks.
5 people found this helpful - Helpful
GN
Gary N.
May 26, 2026
★★☆☆☆
✓ Verified Purchase
No noticeable effect for me
Three months and no change I could point to. Might just be that I was not deficient to begin with. Product quality seems fine but no results for me personally.
8 people found this helpful - Helpful
CT2
Craig T.
May 10, 2026
★★☆☆☆
✓ Verified Purchase
Delivery was the problem
Capsules are fine. Shipping took 5 weeks which is unacceptable. Had to reorder elsewhere in the meantime. The product might work but I could not wait that long to find out.
6 people found this helpful - Helpful
RH
Rob H.
April 15, 2026
★☆☆☆☆
✓ Verified Purchase
Did not work for me
Four months, no noticeable change in energy or mood. Bloodwork showed D levels improved slightly but nothing I could feel. Not for me but I know others have had good results.
4 people found this helpful - Helpful