Rated 4.7 (137)
Thymoquinone (4%+):
The key bioactive in black seed oil, known for antioxidant and inflammatory balance benefits.
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Daily kalonji is a time-tested way to keep the immune system healthy.
Soothes bloating and acidity – take it as a ‘daily detox’ after meals.
Feel refreshed without caffeine spikes. Many users report better stamina and mental clarity.
Revitalises skin glow and strengthens nails. People say, ‘Hair grows faster and thicker’ with regular use.
Promotes a healthy inflammatory response in the body (from antioxidant effects)
Known to gently cleanse & balance the gut microbiome
Sizo Kalonji Oil Capsules contain 100% pure Nigella sativa oil – nothing else. This single-ingredient formula is rich in beneficial compounds:”
The key bioactive in black seed oil, known for antioxidant and inflammatory balance benefits.
Essential fats that support heart, brain and skin health.”
Includes B1, B2, B3, calcium, iron, zinc, etc., which play roles in energy production, immunity and cellular health.
Over time, thymoquinone and other compounds help neutralize free radicals and support healthy aging.
The key is thymoquinone (TQ)—the powerful active compound behind many of black seed oil's benefits. Most oils contain only 0.7–1.2% TQ, while Sizo Ethiopian Black Seed Oil contains up to 4.64% TQ—up to 5× more, making it a more potent choice.*
Up to 5× More Thymoquinone (TQ)
Sizo uses premium Ethiopian Nigella seeds, delivering up to 5× more thymoquinone than ordinary black seed oils. Every batch is lab-tested for purity and potency, with no fillers or preservatives.
We have the data to prove our product works.
We have the data to prove our product works.
Customers have experienced body's natural detoxification pathways
Reported making Sizo part of their daily wellness routine within 6 weeks.
Customers reported Long-term wellness support — your body feels balanced, strong, and energized from the inside out
* Based on internal studies and customer feedback surveys.
"I've been taking Sizo every morning for about a month. The capsules are easy to swallow and don't have the strong taste that liquid black seed oil has. It's become a simple part of my daily wellness routine."
"After trying a few different brands, I switched to Sizo because of the premium ingredients. The quality feels excellent, and I appreciate how convenient the capsules are for everyday use."
I was looking for a natural wellness supplement, and Sizo has been a great addition to my routine. The capsules are gentle, easy to take, and fit perfectly into my busy schedule."
The biggest advantage is the convenience. No messy oil and no unpleasant aftertaste. I take one capsule every day and I'm happy with the overall quality of the product."
Find answers to common questions about our products, shipping, returns, and more.
To place an order, simply browse our products, adOrdinary oils may lack potency. Sizo ishigh-thymoquinone, single-originkalonji, cold-pressed and lab-tested – no fillers or blending.d items to your cart, and proceed to checkout. You can review your order before finalizing your purchase.
Yes, our capsules use a vegetarian cellulose shell (no gelatin) – so it’s 100% plant-based.
Everyone’s body is different. Some people notice subtle changes (better digestion or sleep) in 1–2 weeks; most see fuller benefits after 30–60 days of regular use
A few users (especially on higher doses) find kalonji’s “heaty” nature can cause mild burn or loose stool. We recommend starting with half a capsule to assess your tolerance. Take with food. Always drink plenty of water. If you’re unsure, consult a physician.
Pure & simple – just black seed oil. No binders, fillers or artificial ingredients. We batch-test for heavy metals, pesticides and ensure freshness (shipped quickly, no retail delays).
Take1 capsule daily(500–1000mg). Best taken after dinner or before bed. Swallow with water or juice.
Safe for adults 18+. Even children 5+ (capsules can be opened and mixed with honey or milk). If you’re pregnant, nursing or on prescription meds, please consult a doctor before use.
100% risk-free. If you don’t love Sizo’s effects, just return within 30 days for a full refund. (No questions asked.) We also have an easy Subscribe & Save option you can pause anytime.
Yes, our capsules use a vegetarian cellulose shell (no gelatin) – so it’s 100% plant-based.
A few users (especially on higher doses) find kalonji’s “heaty” nature can cause mild burn or loose stool. We recommend starting with half a capsule to assess your tolerance. Take with food. Always drink plenty of water. If you’re unsure, consult a physician.
Take1 capsule daily(500–1000mg). Best taken after dinner or before bed. Swallow with water or juice.
100% risk-free. If you don’t love Sizo’s effects, just return within 30 days for a full refund. (No questions asked.) We also have an easy Subscribe & Save option you can pause anytime.
We're so confident in the quality of our product that we offer a satisfaction guarantee. If you're not completely satisfied with your purchase, simply return the item within 30 days for a full refund.
ADD TO CARTWe're so confident in the quality of our product that we offer a satisfaction guarantee. If you're not completely satisfied with your purchase, simply return the item within 30 days for a full refund.
ADD TO CART