The Specific Extract That Interrupts the Pain-Sleep Loop — and Why It's Absorbed Over 500% More Efficiently Than Standard CBD
Whether you've been dealing with stiff knees, restless nights, or both at once, a growing body of research points to a single mechanism behind chronic joint discomfort and disrupted sleep in adults over 50.
The scientific community is converging on what's now being called the pain-sleep loop.
Poor sleep heightens daytime sensitivity to discomfort signals. Elevated nighttime discomfort prevents the deep restorative sleep that allows the body to recover. The two reinforce each other, night after night.
Most clinical protocols still treat them as separate problems. Standard anti-inflammatories address one side. Standard sleep aids address the other. Neither addresses the underlying signaling pattern that keeps both ends of the cycle locked together.
In response to this, a team led by a PhD researcher and an MD built their protocol around the cannabinoid hemp actually produces in its raw, living form: cannabidiolic acid, or CBDA.
CBDA is the parent molecule that the hemp plant naturally makes, not CBD. Researchers discovered the raw CBDA is absorbed by the human body over 500% more efficiently than standard CBD that most products on the market use.
By working with the molecule the plant makes — instead of the processed version — the protocol supports the body's healthy response to occasional inflammation, calms the nervous system signals that keep firing at night, and contributes to deeper, more restorative sleep. All through the body's own pathways. Zero THC. No psychoactives.
Pairing raw-form CBDA with a small amount of CBD and dosing it 1–2 hours before bed gives the body both the absorption advantage and the calming bridge into overnight repair. Three years of formulation work later, what came out of that research is now considered the most targeted approach for interrupting the pain-sleep loop in adults over 50.
The compound is CBDA.
Natural Dos Calm+
Built around the cannabinoid the hemp plant naturally makes.
Absorbed over 500% more efficiently than the processed CBD most products use.
Calm+ is formulated to interrupt both ends of the pain-sleep loop. Each softgel delivers 50mg CBDA + 50mg CBD + collagen. Two softgels is one serving — 100mg of each per dose, taken 1–2 hours before bed.
By leveraging the body's own pathways for natural calm and joint comfort, Calm+ offers a non-habit-forming approach that supports the system the same way it would support itself if the loop weren't interfering.
Zero THC. No grogginess. GMP-certified. Third-party lab tested. Founded by a PhD researcher and an MD.
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Most customers who see the results they're looking for order a 2 or 3 bottle supply. The system reset typically shows clearest between weeks four and eight, and the 100-day guarantee covers the full process.
Real Natural Dos Customers
Real Life-Changing Results
4.8 out of 5 — 3,247 verified reviews
"Less Than My Morning Coffee, and Far Cheaper Than the Copays"
✓ Verified Purchase
Ended up being about $2.10 per day. That's less than my morning coffee and far cheaper than the physical therapy copays or the ibuprofen I was going through.
Peter L. — Florida, 61
"Sleeping Through the Night Again After Two Years"
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I used to wake up at 2 AM like clockwork. My knee would start throbbing the second I got still. By week two with Calm+, I started making it to 5 AM. By week four, I was sleeping through. I forgot what that felt like.
Margaret T. — Arizona, 67
"Mornings Are What Changed First"
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The mornings are what changed first. I used to need 20 minutes just to loosen up enough to get down the stairs. Now I'm up and moving within five minutes. My wife noticed before I did.
Robert K. — Ohio, 72
"Nothing Else Touched What Happened at Night"
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I'd tried CBD, glucosamine, fish oil, the works. Nothing touched what happened at night. This was different. I don't know exactly why, but I slept through for the first time in almost two years by week three.
James R. — North Carolina, 64
Scientific References
A selection of peer-reviewed research on cannabidiolic acid (CBDA), its pharmacology, and its mechanisms of action in pain, sleep, and inflammation pathways.






1. Takeda S, et al. Cannabidiolic acid as a selective cyclooxygenase-2 inhibitory component in cannabis. Drug Metab Dispos. 2008;36(9):1917-21. PMID: 18556441
2. Bolognini D, et al. Cannabidiolic acid prevents vomiting in Suncus murinus and nausea-induced behaviour in rats by enhancing 5-HT1A receptor activation. Br J Pharmacol. 2013;168(6):1456-70. PMID: 23121618
3. Vigli D, et al. Chronic Treatment with Cannabidiolic Acid (CBDA) Reduces Thermal Pain Sensitivity in Male Mice. Neuroscience. 2021;453:113-123. PMID: 33010341
4. Takeda S, et al. Down-regulation of cyclooxygenase-2 (COX-2) by cannabidiolic acid in human breast cancer cells. J Toxicol Sci. 2014;39(5):711-6. PMID: 25242400
5. Ruhaak LR, et al. Evaluation of the cyclooxygenase inhibiting effects of six major cannabinoids. Biol Pharm Bull. 2011;34(5):774-8. PMID: 21532172
6. Formato M, et al. (‐)-Cannabidiolic Acid, a Still Overlooked Bioactive Compound. Molecules. 2020;25(11):2638. PMID: 32503116
7. De Gregorio D, et al. Cannabidiol modulates serotonergic transmission and reverses allodynia and anxiety-like behavior. Pain. 2019;160(1):136-150. PMID: 30157131
8. Rock EM, et al. Effect of low doses of cannabidiolic acid and ondansetron on LiCl-induced conditioned gaping. Br J Pharmacol. 2013;169(3):685-92. PMID: 23488964
9. Pertwee RG, et al. Cannabidiolic acid methyl ester produces 5-HT1A receptor-mediated suppression of nausea and anxiety. Br J Pharmacol. 2018;175(1):100-112. PMID: 29044616
10. Resstel LBM, et al. 5-HT1A receptors are involved in cannabidiol-induced attenuation of stress responses. Br J Pharmacol. 2009;156(1):181-8. PMID: 19133999
11. Costa B, et al. Vanilloid TRPV1 receptor mediates the antihyperalgesic effect of cannabidiol in acute inflammation. Br J Pharmacol. 2004;143(2):247-50. PMID: 15313881
12. Starkus J, et al. Diverse TRPV1 responses to cannabinoids. Channels (Austin). 2019;13(1):172-191. PMID: 31088309
13. Wakshlag JJ, et al. Pharmacokinetics of Cannabidiol, Cannabidiolic Acid and Related Metabolites. Front Vet Sci. 2020;7:505. PMID: 33102539
14. Anderson LL, et al. Pharmacokinetics of Phytocannabinoid Acids and Anticonvulsant Effect of Cannabidiolic Acid. J Nat Prod. 2019. doi: 10.1021/acs.jnatprod.9b00600
15. Goerl B, et al. Cannabidiolic acid exhibits entourage-like improvements of anticonvulsant activity. Epilepsy Res. 2021;169:106525. PMID: 33310415
16. Rock EM, et al. Evaluation of CBD, CBDA or CBDA methyl ester on nausea and vomiting. Psychopharmacology. 2020;237(9):2621-2631. PMID: 32488349
17. Aragona F, et al. Role of cannabidiolic acid in pain modulation in horses with chronic osteoarthritis. Front Vet Sci. 2024;11:1496473. PMID: 39720409
18. Kleinhenz MD, et al. Industrial hemp with high CBDA increases lying behavior and reduces stress biomarkers. Sci Rep. 2022;12(1):3683. PMID: 35256692
19. Rock EM, et al. Therapeutic potential of cannabidiol, cannabidiolic acid, and CBDA methyl ester for nausea and vomiting. Cannabis Cannabinoid Res. 2021. doi: 10.1089/can.2021.0041
20. Perucca E, Bialer M. Critical aspects affecting cannabidiol oral bioavailability and metabolic elimination. CNS Drugs. 2020. PMID: 32504402
Natural Dos is not endorsed by, sponsored by, or affiliated with any research institution, journal, or author listed above. References are provided for informational purposes. Individual results may vary.
Frequently Asked Questions
I've tried CBD before and felt nothing. Why would this be different?
Standard CBD products are made from processed extract — the compound has been converted through heat during production. CBDA is the raw precursor, before that conversion happens. Research suggests CBDA absorbs significantly more efficiently than processed CBD, which may explain why people who felt nothing from CBD report a different experience with CBDA. It also works on slightly different pathways, including one specifically tied to sleep quality and pain sensitivity.
What's the difference between CBD and CBDA?
CBD is the processed, heated form of the compound. CBDA is the raw, unprocessed form — the way it exists naturally in the plant before heat converts it. The key difference is absorption: your body can take in the raw form significantly more efficiently. Most companies use CBD because it's cheaper and easier to produce. Natural Dos uses CBDA because it works better.
Will this make me feel high?
No. Calm+ is THC-free. It contains no psychoactive compounds. You won't feel impaired, altered, or "out of it." What most people describe is a sense of calm — like the background noise turning down. That's the nervous system settling, not a high.
Is it safe to take with my current medications?
Calm+ is made from natural ingredients with a strong safety profile. That said, if you're currently taking prescription medications, especially blood thinners, blood pressure medication, or anti-seizure drugs, we recommend checking with your doctor before starting any new supplement, including this one.
How long before I notice results?
Sleep improvements often come quickly — many customers notice a difference in the first one to two weeks. Joint comfort builds more gradually. CBDA accumulates in your system over time, and most customers report meaningful joint improvement around the 30-day mark. That's why we offer the 100-day guarantee — it gives you enough time to experience the full effect.
How does the 100-day guarantee work?
If you don't notice a real difference in how you sleep or how your joints feel, contact us any time within 100 days and we'll issue a full refund — no need to return the bottle, no questions asked. You can reach us at info@naturaldos.com or 205-210-8429. We respond within one business day.
Who makes Natural Dos?
Natural Dos was founded by a PhD researcher and an MD who were frustrated with the quality of hemp products on the market. The formulation was developed and researched to meet clinical standards. Every batch is third-party lab tested and manufactured in a GMP-certified facility in the United States.
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