Our CB4™ brand of medical cannabis products are based on science and engineered to deliver results.

CB4 Relief-T Extra Strength (4x) Fast Acting Softgels

25mg CBD & 0.75mg THC Softgel Capsules


CBD 25 mg/softgel
THC 0.75 mg/softgel
BCP 13 mg/softgel

High potency, fast acting, long lasting: 4x higher potency (based on peak absorption) and 3x faster onset (faster time to reach peak) versus most other oral CBD products. See additional details below for graphs and clinical data.

Opticann’s CB4 Relief-T are convenient green-coloured oral softgel capsules, providing medical patients with a fast-acting, high-potency CBD option combined with a low dose of THC for additive effect. Specially formulated to deliver maximum levels of 25 mg of CBD, 13 mg of Beta-Caryophyllene (BCP), and 0.75 mg of THC, three ingredients known to have medical activity on cannabinoid receptors in the endocannabinoid system among other effects. VESIsorb® is used to maintain the quality and stability of the product.

Gluten-free, non-GMO formulation. This product contains low levels of THC which may result in a mild level of THC side effects, including drowsiness, dizziness, and dry mouth.

These innovative CBD softgel capsules are formulated with patented VESIsorb® technology for increased and consistent bioavailability, offering maximum and safe CBD absorption when taken orally.


Size Price
15 Softgels $45.99
30 Softgels $89.99

Scientific Evidence:
CBD Evidence for Pain and Inflammation 
CBD Evidence for Anxiety and PTSD
THC Evidence for Pain and Related Syndromes
BCP Evidence for Inflammation
VESIsorb® Evidence for Rapid and Maximum CBD Absorption
VESIsorb® Evidence for Rapid and Maximum BCP Absorption

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CB4 Relief-T is formulated with VESIsorb®, a safe and effective water-soluble patented drug delivery pharmaceutical technology that can help dramatically improve the bioavailability of poorly absorbed ingredients such as THC, CBD and terpenes such as β-Caryophyllene.

A clinical trial with VESIsorb® products tested for improvement in CBD absorption showed a 4.4-fold increase in peak absorption (Cmax) and reached 3x faster plasma concentration (Tmax) than comparable CBD products without VESIsorb®.1

CBD Performance Advantage (25 mg) CB4 Relief-T Normal CBD in MCT Oil CB4 Advantage
CBD Cmax (Maximum concentration) -effect 13 ng/mL 3 ng/mL 4.4x more
CBD Tmax (Time to reach maximum concentration) -onset of action 1 hour 3 hours 3x faster

There are peer-reviewed published clinical studies that show orally administered ingredients are absorbed faster and to a greater extent with VESIsorb® than products without.2

BCP Performance Advantage (100 mg) CB4 Relief-T Normal CBD in MCT Oil CB4 Advantage
BCP Cmax (Maximum concentration) -effect 205 ng/mL 58 ng/mL 3.6x more
BCP Tmax (Time to reach maximum concentration) -onset of action 1.4 hours 3.1 hours 2x faster


1 Knaub K, et al. “A Novel Self-Emulsifying Drug Delivery System (SEDDS) Based on VESIsorb® Formulation Technology Improving the Oral Bioavailability of Cannabidiol in Healthy Subjects.” Molecules, vol.24, no.2964, Aug 2019
2 Modinger, Yvonne, et al. “Enhanced Oral Bioavailability of β-Caryophyllene in Healthy Subjects Using the VESIsorb® Formulation Technology, a Novel Self-Emulsifying Drug Delivery System (SEDDS).” Molecules, vol.27(9), no.2860, May 2022


Each softgel contains: Cannabis Sativa Extract 25 mg CBD, 0.75 mg THC, 13 mg Beta-Caryophyllene, Vitamin E Dimer Derivative, Mono and Diglycerides, Fatty Acids, Natural Flavours, Gelatin (Bovine), Glycerine, Natural Food Colouring, Water.

The product image and label are provided for illustrative purposes only. Actual labels may vary.

Potency per bottle

15 capsule bottle contains: 30 capsule bottle contains:
CBD 375 mg CBD 750 mg
THC 11.25 mg THC 22.5 mg

How to Use

Directions: Take once softgel daily as needed, with or without food. Incorporate at evening or bedtime. The higher absorption from CB4 Relief-T softgels may enable patients to take one dose once or up to twice daily. For best efficacy, take medications at the same time every day.

Store softgels in a cool, dry place, away from direct sunlight.

Patients with known hypersensitivities to oral CBD or THC should exercise caution when consuming this product.

Talk to your healthcare provider (physician or pharmacist) about what dose is right for you. Your healthcare provider can advise you on drug interactions, precautions, and contraindications.

cbd capsules Benefits of oral capsules:

  • Consistent and long-lasting effect
  • Avoid the byproducts of inhalants
  • Portable and easy-to-swallow
  • Standardized, precision dosage