Vitamin D + K2 Liquid with a Metered Dispenser - Vitamins D3 & K2 to Support Healthy Bones & Muscles* - 1 Fl Oz (30 ml) - 600 Servings

THORNE's Vitamin D + K2 Liquid has been exactly what I needed for optimal bone and cardiovascular health support! As someone who has struggled with vitamin D deficiency despite taking various supplements, this liquid formula with the synergistic K2 combination has finally delivered the results my doctor and I were looking for. The liquid format with the metered dispenser is incredibly convenient and ensures precise dosing every time. Just a few drops under the tongue and I'm getting the perfect amount of both D3 and K2 without having to swallow large capsules. The absorption seems superior to the tablets I used previously - my most recent blood work showed significant improvement in my vitamin D levels after just three months of consistent use. What I love about THORNE is their unwavering commitment to purity and quality. These vitamins are free from unnecessary additives, artificial colors, and preservatives that are common in other brands. As someone with multiple food sensitivities, knowing that THORNE products undergo rigorous testing gives me complete confidence in their safety and potency. The combination of D3 and K2 is brilliant because they work synergistically to support both bone health and proper calcium utilization. Since starting this supplement, I feel more confident that I'm not only getting adequate vitamin D but also ensuring the calcium I consume goes where it should - into my bones rather than soft tissues. The liquid has a very mild taste and mixes easily into water or juice if preferred, though I find taking it directly is just as pleasant. The bottle lasts several months with daily use, making it excellent value for pharmaceutical-grade supplementation. My energy levels have noticeably improved, and I feel more resilient during the darker winter months when natural vitamin D production is limited. My healthcare provider was impressed with my improved levels and recommended I continue with this specific formulation. For anyone serious about optimizing their vitamin D status with a trusted, scientifically-formulated product, THORNE delivers uncompromising quality and effectiveness.

My husband got his bloodwork done and his vitamin D levels were extremely low so he decided to give this a try. After taking them for over a year and had repeat bloodwork done his vitamin D levels are in the normal range. He believes that these drops definitely helped when taking them consistently! To him, the drops taste like water so absolutely nothing! Great quality, no smell, good size being the drops, and could tell a difference in his energy level.

This is my favorite vitamin D to take. It’s easy to use and carry on when traveling. It comes in a small bottle and provided metered doses of 1000 iu’s of Vitamin D3 and 200 mcg of Vitamin K2. Taking it with food that contains fat is important for absorption so I take it with breakfast. I like that it’s liquid and has no taste or smell. I can drop it onto a spoon or put in a smoothie and I can’t taste it. Repeat bloodwork shows an increase in D levels so I know it’s working. While it’s a bit more expensive than other brands, it’s worth the money and I’ll continue to use this brand to help maintain my vitamin d level.

I’ve tried several Vitamin D + K2 supplements over the years, but this one by Thorne truly stands out for its quality, potency, and convenience. First off, I appreciate Thorne’s reputation for third-party testing and clean ingredients. As someone who is cautious about what goes into our bodies—especially for our kids—knowing there are no unnecessary additives or allergens gives me great peace of mind. We have two teen athletes in the house, and supporting their immune systems, energy, recovery, and bone health is a top priority. Their coaches emphasize the importance of D3, and this has been a perfect, reliable option to include in their daily routine. Within just a few weeks, we noticed improvements in their mood, focus, and overall recovery between practices and tournaments. The liquid dropper format is a game changer. It’s super easy to dose, especially for picky kids or anyone who struggles with swallowing pills. The taste is neutral enough to take directly, or we can mix it into a smoothie or juice without any complaints. I also love that it combines D3 with K2, which is important for proper calcium absorption and bone support—critical for growing, active teens. Storage is simple—I keep it in a cool, dark cabinet (not the fridge), and it holds potency well over time. This is now a staple in our family’s supplement routine, and I’ll definitely continue to reorder. If you’re looking for a reliable, well-formulated Vitamin D + K2 supplement for your household, I can’t recommend this one enough.

I’ve been using Thorne supplements for years and have always had good experiences, but this is my first time trying their Vitamin D drops. I was specifically looking for a formula that included K2, so I decided to give these a try. I really like that it’s a liquid--I can easily add it to my morning tea instead of swallowing another pill. The vitamin D dosage is higher than many other brands I’ve looked at, and the bottle has lasted a long time for the price and size of the bottle. There’s no noticeable smell or taste. I’m still early on but looking forward to seeing if it makes a difference in my energy levels. The only downside for me is that it’s a bit difficult to get the drops out of the bottle.

Good quality Vitamin D + K2. Brought my levels up, didn't have any issues with stomach when taking it. It doesn't smell or taste bad at all. You can take it straight into the mouth or add it to water and it's easier to swallow compared to pills.

Top #1

So easy to use , long lasting and value for money

This Vitamin D + K2 liquid is a powerhouse in a bottle! It’s super easy to take, thanks to the metered dispenser that gives you exactly what you need—no guesswork, no mess. The liquid format absorbs quickly, and with 600 servings in one bottle, it feels like it’ll last forever (okay, maybe not forever, but close!). I’ve been using it daily, and I’ve noticed my energy levels are better, and my muscles feel less fatigued after workouts. Knowing it’s supporting my bones too is a nice bonus—healthy bones, happy life, right? The flavor is very mild, almost nonexistent, which is great if you’re not a fan of overly flavored supplements. Just pop it into your favorite drink or take it straight—it’s that simple. The only downside is the price—it’s a bit of an investment upfront, but considering how long it lasts, it’s totally worth it. Also, it’s important to take it with a fat-containing meal for proper absorption, but that’s standard for vitamin D. Overall, this is a high-quality, easy-to-use supplement that delivers real results. If you’re serious about supporting your bones, muscles, and overall health, this is a no-brainer! 4.9/5

Easy to consume, convenient way to get enough vitamin d. Just the D & K vitamins, no nasty additives that normally upset my digestive tract. Drop into my water twice a day. Simple. I think they are working. Seem pricey, but, the quantity justifies this.

Best price, super quick delivery