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100% Pure, Highest-Quality,
Organic Hemp CBD

Ultimate Serum Empowers You for Better Health
& Well-Being with the Power of Nature!

The Ultimate CBD Experience

With Ultimate Serum products, you get safe, pure CBD of the highest quality — with all health-boosting compounds found in the hemp plant — plus proven, powerhouse plants, like turmeric, ginger, and black pepper, for an enhanced effect.

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Whole Plants

We believe in the power of whole plants for whole health.

Our premium CBD oils are full-spectrum, so you get CBD, 100+ other cannabinoids, terpenes, and phytonutrients, all naturally extracted from the hemp plant.

And we include superfood plants in every product because they enhance the effects of CBD — and have their own healing benefits.

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Transparency & Testing

Ultimate Serum products are lab tested by a 3rd party for potency, to ensure you get CBD and very low THC (less than 0.3%).

They’re also tested for purity, to ensure the product is clean and free of toxins.

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Balance for Your Body & Mind

CBD interacts with your endocannabinoid system.

This system was only discovered in the 1990s, so you might not have heard of it. But it’s hugely important!

It helps maintain homeostasis, or balance, throughout your body, and in your brain.

Your endocannabinoid system plays a role in regulating a range of functions and processes in your body:

  • Mood
  • Stress
  • Sleep
  • Inflammation
  • And much more

That’s why supporting your endocannabinoid system with high-quality CBD may have a variety of benefits.

Our Founder: Robyn Openshaw

Robyn Openshaw, the Green Smoothie Girl, is known for quality, safe, trustworthy products.

When Robyn realized all the potential benefits of CBD and the abundance of low-quality CBD products, she wanted to create CBD that people could trust.

Ultimate Serum CBD is your ultimate choice for supporting your body and mind with some of nature’s most powerful plant medicines.

Robyn Openshaw

Robyn Openshaw
Ultimate Serum founder
Green Smoothie Girl

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Ultimate Serum empowers you for better health through the power of nature. Our hemp CBD oils are 100% pure, organic, full-spectrum, and the highest quality you’ll find.

Each product is uniquely combined with healing superfoods, including some of the most powerful anti-inflammatory plants.

Newsletter

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Newsletter

Join our newsletter for discounts and important health information!

Ultimate Serum promises to keep your email address and any other information about you safe.You can see our Privacy Policy here.

Disclaimer

*We only ship within the contiguous United States. We’re unable to ship to Idaho, Nebraska, South Dakota, Alaska, Hawaii, APO/FPO/DPO, and countries outside the USA.

This product is not for use by or sale to persons under the age of 18. The statements made regarding these products have not been evaluated by the Food and Drug Administration. The efficacy of these products has not been confirmed by FDA-approved research. These products are not intended to diagnose, treat, cure, or prevent any disease. All information presented here is not meant as a substitute for or alternative to information from health care practitioners. Please consult your health care professional about potential interactions or other possible complications before using any product. The Federal Food, Drug, and Cosmetic Act require this notice.