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Supports Immunity, Bone Health, and Calcium Absorption

Vitamins D3 and K2 play important roles in supporting immune function, bone strength and calcium metabolism. D3 contributes to normal immune system activity and helps the body absorb calcium. K2 helps guide calcium to bones and away from soft tissues.*

Supports a strong immune system*
Helps regulate calcium absorption*
Supports bone and cardiovascular health*
Contributes to overall cellular function*

When combined, D3 and K2 help maintain proper calcium balance in the body to support strong bones and cardiovascular health.

CoQ10 Product CoQ10 Product
CoQ10 Benefits CoQ10 Benefits
d3k2

Key Benefits

Immune System Support icon

Immune System Support

Vitamin D3 supports healthy immune function and helps regulate the body’s immune response.*

Bone Health icon

Bone Health

Vitamins D3 and K2 work together to support calcium absorption and bone strength while helping to prevent calcium buildup in soft tissues.*

Cardiovascular Support icon

Cardiovascular Support

K2 helps guide calcium into bones and away from arteries, supporting vascular health and normal blood vessel function.*

Cellular Health icon

Cellular Health

D3 and K2 support normal cell function and play a role in immune-related cellular processes that help maintain overall health.*

Liposomal Vitamin D3K2 Study

The Effect of a Liposomal Cholecalciferol Preparation on25(OH) Vitamin D Levels – A comparative, open-label study

Study 1

Study 1

Increase in Vitamin D Levels After 30 Days*

In a comparative open label study, fifteen healthy adults took a liposomal supplement delivering 125 mcg (5,000 IU) of vitamin D3 and 400 mcg of vitamin K2 (MK-7) daily for 30 days. Participants experienced an average increase in serum 25(OH) vitamin D levels of 73% from baseline.*

For comparison

In the same study, participants taking a non-liposomal supplement at the same dosage
saw only a 16% average increase in 25(OH) vitamin D levels.*

*https://cellg8.com/vitamin-d-study/

Study 2

Increase in Vitamin D Levels in Individuals with Insufficient Baseline (<30 ng/mL)*

Participants who began the study with serum 25(OH) vitamin D levels below 30 ng/mL experienced an even greater response, with an average 112% increase in 25(OH) vitamin D levels after 30 days of supplementation.*

*https://cellg8.com/vitamin-d-study/

Recommended By

Top Health Experts & Pro Athletes

Gary Brecka

Gary Brecka

world-renowned human biologist, Rho Partner

I've made Rho's NAD+ and Glutathione part of my daily routine. A powerful combo that helps support clean energy, natural detox pathways and longevity.

Dr. Amy Shah MD

Dr. Amy Shah MD

Cornell, Harvard, Columbia Trained Md, Rho Partner

I've dedicated my career to improving the health and longevity of my patients. Rho is what I recommend and take personally as a part of my holistic approach to health and longevity.

Noah Ohlsen

Noah Ohlsen

11x Crossfit Games Athlete & 2x Medalist, Rho Partner

I was honestly blown away by how fast I felt the difference in my performance and recovery. Rho’s supplements help me push harder in training and bounce back quicker than ever.

Dr. Becky Campbell MD

Dr. Becky Campbell MD

Functional Medicine Physician, Rho Partner

I’m usually picky about supplements, but with Rho’s Liposomal absorption technology, I know I’m getting unmatched effectiveness.

Ben Greenfield

Ben Greenfield

Health Consultant and NYT Best-Selling Author, Rho Partner

Rho’s collagen peptides and curcumin are a staple in my longevity stack. They help support healthy joints, skin, and cellular aging.

Lauren Fisher

Lauren Fisher

9x CrossFit Games Athlete, Rho Partner

Over my eight years competing at the CrossFit Games, supplementation has been a crucial part of my daily regimen. The purity and potency of Rho’s products are something I can trust.

Ken Rideout

Ken Rideout

World Champion Marathoner, Rho Partner

Rho is a core part of my routine because I feel the difference. Curcumin & NAD+ help me recover faster, stay sharp, and show up with intensity every day.

Dr. Mani Kukreja MD

Dr. Mani Kukreja MD

CEO of Livagewell, Rho Partner

I've dedicated my career to improving the health and longevity of my patients. Rho is what I recommend and take personally as a part of my holistic approach to health and longevity.

Kaisa Keranen

Kaisa Keranen

Movement Coach & Founder of Just Move, Rho Partner

Rho transformed how I feel, sleep, look and perform. At 40, these supplements have given me more energy, improved my sleep, skin, and taken my performance to the next level!

These individuals partner with Rho Nutrition as paid ambassadors, sharing their real routines and results.

Recommended By

Top Health Experts & Pro Athletes

Gary Brecka
Dr. Amy Shah MD
Noah Ohlsen
Dr. Becky Campbell MD
Ben Greenfield
Lauren Fisher
Ken Rideout
Dr. Mani Kukreja MD
Kaisa Keranen
Gary Brecka

Gary Brecka

world-renowned human biologist, Rho Partner

I've made Rho's NAD+ and Glutathione part of my daily routine. A powerful combo that helps support clean energy, natural detox pathways and longevity.

Dr. Amy Shah MD

Dr. Amy Shah MD

Cornell, Harvard, Columbia Trained Md, Rho Partner

I've dedicated my career to improving the health and longevity of my patients. Rho is what I recommend and take personally as a part of my holistic approach to health and longevity.

Noah Ohlsen

Noah Ohlsen

11x Crossfit Games Athlete & 2x Medalist, Rho Partner

I was honestly blown away by how fast I felt the difference in my performance and recovery. Rho’s supplements help me push harder in training and bounce back quicker than ever.

Dr. Becky Campbell MD

Dr. Becky Campbell MD

Functional Medicine Physician, Rho Partner

I’m usually picky about supplements, but with Rho’s Liposomal absorption technology, I know I’m getting unmatched effectiveness.

Ben Greenfield

Ben Greenfield

Health Consultant and NYT Best-Selling Author, Rho Partner

Rho’s collagen peptides and curcumin are a staple in my longevity stack. They help support healthy joints, skin, and cellular aging.

Lauren Fisher

Lauren Fisher

9x CrossFit Games Athlete, Rho Partner

Over my eight years competing at the CrossFit Games, supplementation has been a crucial part of my daily regimen. The purity and potency of Rho’s products are something I can trust.

Ken Rideout

Ken Rideout

World Champion Marathoner, Rho Partner

Rho is a core part of my routine because I feel the difference. Curcumin & NAD+ help me recover faster, stay sharp, and show up with intensity every day.

Dr. Mani Kukreja MD

Dr. Mani Kukreja MD

CEO of Livagewell, Rho Partner

I've dedicated my career to improving the health and longevity of my patients. Rho is what I recommend and take personally as a part of my holistic approach to health and longevity.

Kaisa Keranen

Kaisa Keranen

Movement Coach & Founder of Just Move, Rho Partner

Rho transformed how I feel, sleep, look and perform. At 40, these supplements have given me more energy, improved my sleep, skin, and taken my performance to the next level!

These individuals partner with Rho Nutrition as paid ambassadors, sharing their real routines and results.

RHO Liposomal Technology

How It Works

step 1

Encapsulation

Nutrients are enclosed within liposomes—tiny, lipid-based spheres designed to protect active ingredients.

step 2

Delivery

Liposomes transport nutrients through the digestive system, shielding them from breakdown.

step 3

Designed For High Absorption

Traditional supplements break down in digestion. Our phosphatidylcholine-based liposomes act as protective carriers, supporting absorption.

step 1

Encapsulation

Nutrients are enclosed within liposomes—tiny, lipid-based spheres designed to protect active ingredients.

step 2

Delivery

Liposomes transport nutrients through the digestive system, shielding them from breakdown.

step 3

Designed For High Absorption

Traditional supplements break down in digestion. Our phosphatidylcholine-based liposomes act as protective carriers, supporting absorption.

Nutrient

Liposome

Customer Reviews

Based on 207 reviews
85%
(176)
11%
(22)
3%
(7)
0%
(1)
0%
(1)
M
Melissa B.
Great way to get your Vitamin D

Mixes with my favorite drink and doesn’t taste bad!

D
Dan Richards
No Issues

I have not been taking the D3K2 product for too long. Hoping to see some changes after the first bottle. Easy to take, no issues with digestion. Time will tell.

K
Kelley Sodel
Great

Love it

C
Carolyn Ebmeyer
Great taste - feel great!

I have taken D3K2 for a couple of months now along with more Rho products and I can tell a difference in my energy. I feel like I am getting quality products and they are making a difference.

B
Brad Howard
Tried and liked

Definitely can tell the difference in a week between the liposomal intake and a traditional pill.

T
Timothy Attenborough
Interesting

Not sure I’ve ever taken a liquid form of vitamins before. The first day I tried it in water, not great, the second and everyday since the first I have added it to juice and I don’t even taste it. Since taking it I feel as though I have more energy. I am very pleased with the product that I’m going to order the NAD+. Definitely worth trying, highly recommend!!

C
Christina Van Etten
Best

I love Rho nutrition products.. recommended by my Dr brother. I had part of my intestines removed. I don’t absorb things normal your products DK2, liosomol and magnesium are fantastic.

B
Breann Acuna
First Timer

Very pleased with taste and consistency. Good addition to my regimen. Will be purchasing again.

A
Ashley Merrill

Liposomal D3K2

D
Donna Stratford
D3 K2

Fantastic Products

All reviews are from verified buyers. Some customers received a discount on a future order for sharing their honest feedback. Reviews reflect the opinions and experiences of individual customers and may not be typical for all users.

Questions? We have answers!

You can easily manage your subscription by navigating to the footer of our website and clicking the ‘Manage Subscription’ tab. From here you can login using the email that was used to place your order. You will be sent a one time code to your email to login with. Once in your subscription portal you have full control to cancel, modify, swap products, change shipping dates and even gift an order.

For optimal results the recommended daily dose is 15ml, equivalent to one tablespoon. You have the flexibility to take it with or without food, directly from the teaspoon, or mixed into any beverage of your choice. You can combine Rho creatine with other Rho products in the same drink for added convenience. It can also be added into any workout shakes or drinks.

Domestic orders typically arrive within 3-6 business days and you will receive an email with the tracking information as soon as your order leaves our warehouse in New Jersey. If you have any questions or concerns, please feel free to reach out to our team at support@rhonutrition.com and they will be happy to help.

Nope! While we suggest refrigerating all Rho products for the best taste experience, refrigeration isn't mandatory. You can even take them on the go without refrigeration, making them perfect for travel.

Liposomal delivery is a technique used to help support the absorption and bioavailability of certain nutrients. It involves encapsulating the active ingredient within tiny lipid-based bubbles called liposomes. These liposomes act as protective carriers, helping the nutrient pass through the digestive system and supporting its absorption into the body.

Sunflower lecithin is often confused with sunflower oil, but the two are very different. While sunflower oil is simply the pressed oil from sunflower seeds, sunflower lecithin is a special substance extracted from these seeds that contains important nutrients called phospholipids. One key phospholipid it provides is phosphatidylcholine, which is essential for building true liposomes—tiny, protective “bubbles” that can carry nutrients into your cells more effectively. In other words, sunflower lecithin is not the same as the sunflower oil you’d use in cooking. Instead, it’s a natural, safe ingredient that helps create stable, high-quality liposome supplements to improve the delivery and absorption of vitamins and other nutrients.

We recommend consuming a new product consistently for a couple of months for optimal results. However, if you’re not satisfied for any reason we have a 60-day money back guarantee. Simply email support@rhonutrition.com to let us know and we will happily assist you. You can read the full Refund Policy here. 

Although the term "Natural Flavors" is often used ambiguously or even misleadingly by other brands to hide nasty ingredients, rest assured that our natural flavors are nothing but highly purified plants, herbs, and citrus extracts. They're formulated by our expert flavorists exclusively to enhance taste, without any of the concerning additives you might find elsewhere.

Yes, at Rho Nutrition every single product undergoes a rigorous quality control process ensuring we are setting the industry standard for quality and safety. Every step of the manufacturing process is carefully documented, tested and done in a cGMP, FDA registered and allergen free facility. Every product undergoes third party testing for purity, safety, and potency.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.