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Essential for Immunity, Strong Bones & Calcium Absorption

Vitamin D3 is one of the most essential nutrients for immune function, bone strength, and overall health, playing a key role in regulating the immune response and reducing inflammation.

Supports a strong immune system
Optimizes calcium absorption
Cardiovascular support
Cellular health & longevity 

It also helps the body absorb calcium, but without Vitamin K2, that calcium can accumulate in arteries instead of bones. K2 works synergistically with D3 by directing calcium to where it’s needed, supporting both bone density and cardiovascular health.

CoQ10 Product CoQ10 Product
CoQ10 Benefits CoQ10 Benefits
d3k2

Key Benefits

Immune System Regulation icon

Immune System Regulation

Vitamin D3K2 is known to modulate the immune system and control the production of pro-inflammatory cell messengers, which is crucial for a balance immune system.*

Bone Health icon

Bone Health

Vitamin D3K2 plays a vital role in maintaining strong bones by promoting the absorption of calcium into bones and teeth, preventing calcium buildup in soft tissues.*

Cardiovascular Support icon

Cardiovascular Support

Vitamin D3K2 directs calcium away from the arterial walls and into bones. This helps maintain healthy blood vessels function and reduces risk of calcification and arterial plaque.*

Cellular Health icon

Cellular Health

Vitamin D3K2 supports cellular health and function. Vitamin D3's influence on immune responses and cellular processes can help protect against various health issues.*

Liposomal Vitamin D3K2 Study

Rho Liposomal D3K2 vs Traditional D3

Study 1

Study 1

*Increase in Vitamin D Level After 30 Days

Fifteen healthy participants underwent baseline 25(OH) Vitamin D testing, followed by supplementation with a liposomal product containing 125 mcg (5,000 IU) vitamin D and 400 mcg vitamin K (as MK7) daily for 30 days. Participants in this study had an average increase in serum 25(OH) Vitamin D of 73% over baseline.

For comparison

The average increase in 25(OH) Vitamin D with supplementation of a non-liposomal preparation for 30 days at this dosage is ONLY 16%.

Study 2

*Increase in Vitamin D Level in Individuals Insufficient at Baseline (<30ng/mL)

Individuals who began the study with a 25(OH) Vitamin D level in the "insufficient" range (below 30 ng/mL) had an even greater response, averaging a 112% increase.

Recommended By

Top Health Experts & Pro Athletes

Dr. Amy Shah MD

Dr. Amy Shah MD

Cornell, Harvard, Columbia Trained Md

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

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

I’m usually picky about supplements, but with Rho’s enhanced absorption technology, I know I’m getting unmatched, clinical-grade effectiveness.

Lauren Fisher

Lauren Fisher

9x CrossFit Games Athlete

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 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

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 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!

Recommended By

Top Health Experts & Pro Athletes

Dr. Becky Campbell MD
Lauren Fisher
Ken Rideout
Dr. Mani Kukreja MD
Kaisa Keranen
Dr. Amy Shah MD

Dr. Amy Shah MD

Cornell, Harvard, Columbia Trained Md

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

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

I’m usually picky about supplements, but with Rho’s enhanced absorption technology, I know I’m getting unmatched, clinical-grade effectiveness.

Lauren Fisher

Lauren Fisher

9x CrossFit Games Athlete

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 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

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 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!

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

Beyond Clinical-Grade Absorption

Traditional supplements break down in digestion. Our phosphatidylcholine-based liposomes act as protective carriers, ensuring nutrients reach your cells intact and potent.

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

Beyond Clinical-Grade Absorption

Traditional supplements break down in digestion. Our phosphatidylcholine-based liposomes act as protective carriers, ensuring nutrients reach your cells intact and potent.

Nutrient

Liposome

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 enhance the absorption and bioavailability of certain nutrients or compounds. It involves encapsulating the active ingredient within tiny lipid (fat) molecules called liposomes. These liposomes act as protective shells, allowing the encapsulated substance to bypass degradation in the digestive system and facilitating its absorption into the bloodstream. This method improves the delivery of nutrients to target cells and tissues, maximizing their therapeutic effects.

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.