Natures Aid Calcium, Magnesium & Vitamin D3 90's
Calcium, Magnesium and Vitamin D contribute to the maintenance of normal bones and teeth. Vitamin D helps in the normal absorption and utilisation of calcium. In addition, magnesium contributes to normal muscle function, and a reduction in tiredness & fatigue.
- Ingredients: Calcium Carbonate Prep (Calcium Carbonate, Maltodextrin), Microcrystalline Cellulose, Magnesium Oxide, Calcium Citrate, Anticaking Agent (Silicon Dioxide), Tablet Coating (Hydroxypropylcellulose, Hydroxypropylmethylcellulose), Magnesium Citrate, Anticaking Agent (Vegetable Source Magnesium Stearate), Sodium Carboxymethylcellulose, Vitamin D3 Prep. (Cholecalciferol Maltodextrin, Corn Starch, Medium Chain Triglycerides, Silicon Dioxide, D-Alpha Tocopherol, Ascorbyl Palmitate).
This product is suitable for the following requirements:
- Vegan
- Vegetarian
This product is hypoallergenic / does not contain any of the 14 major allergens listed in Annex II (1169/2011) of the EU Food Information for Consumers Regulation.
- Can split into a smaller size?: Yes
- Depth: 7.8
- Length: 22.5
- Quantity: 90
- Width: 9
- Directions: Take 2 tablets per day with food.
- Certified Gmp
- Certified Vegan
- Glutenfree
- Gmp
- Vegan
Related Products
Quickview
{"id":15485858152826,"title":"Natroceutics Alpha Lipoic Acid 60s","handle":"natroceutics-alpha-lipoic-acid-60s","description":"\u003cp\u003eDelivers 127.5mg of bioactive R-lipoic acid. Research supported. 3x the bioavailability of unstabilized RALA. Bio-Enhanced® Alpha Lipoic Acid demonstrated over 10x peak plasma levels when compared to unstabilized RALA for enhanced potency and efficacy.\u003c\/p\u003e","published_at":"2025-11-14T15:22:01+00:00","created_at":"2025-11-14T15:22:01+00:00","vendor":"Natroceutics","type":"","tags":["TND"],"price":2950,"price_min":2950,"price_max":2950,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":56180254114170,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"NTC-NAT-ALA","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Natroceutics Alpha Lipoic Acid 60s","public_title":null,"options":["Default Title"],"price":2950,"weight":0,"compare_at_price":null,"inventory_quantity":2,"inventory_management":"shopify","inventory_policy":"deny","barcode":"6009888578308","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-ala.png?v=1763133730","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/33509.png?v=1763133732","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/33510.png?v=1763133735","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-ala_9fc0654f-8225-4b45-a76f-4e7cd6f377ca.png?v=1763133738"],"featured_image":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-ala.png?v=1763133730","options":["Title"],"media":[{"alt":"natroceutics alpha lipoic acid 60s","id":68852547715450,"position":1,"preview_image":{"aspect_ratio":1.0,"height":979,"width":979,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-ala.png?v=1763133730"},"aspect_ratio":1.0,"height":979,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-ala.png?v=1763133730","width":979},{"alt":"natroceutics alpha lipoic acid 60s","id":68852548370810,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/33509.png?v=1763133732"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/33509.png?v=1763133732","width":1000},{"alt":"natroceutics alpha lipoic acid 60s","id":68852548927866,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/33510.png?v=1763133735"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/33510.png?v=1763133735","width":1000},{"alt":"natroceutics alpha lipoic acid 60s","id":68852549550458,"position":4,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-ala_9fc0654f-8225-4b45-a76f-4e7cd6f377ca.png?v=1763133738"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-ala_9fc0654f-8225-4b45-a76f-4e7cd6f377ca.png?v=1763133738","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eDelivers 127.5mg of bioactive R-lipoic acid. Research supported. 3x the bioavailability of unstabilized RALA. Bio-Enhanced® Alpha Lipoic Acid demonstrated over 10x peak plasma levels when compared to unstabilized RALA for enhanced potency and efficacy.\u003c\/p\u003e"}
You may also like:
Natroceutics Alpha Lipoic Acid 60s
£29.50
Delivers 127.5mg of bioactive R-lipoic acid. Research supported. 3x the bioavailability of unstabilized RALA. Bio-Enhanced® Alpha Lipoic Acid demonstrated over 10x peak plasma levels when compared to unstabilized RALA for...
Quickview
{"id":15485858054522,"title":"Natroceutics Omega 3 Fortified 60s","handle":"natroceutics-omega-3-fortified-60s","description":"\u003cp\u003eSuperior Triglyceride Form (TG). Produced from Wild Alaskan pollock. High potency-EPA 400mg DHA 300mg per 1000mg capsule. Leading purity with TOTOX score of below 5 at encapsulation. Proven lutein + zeaxanthin combination - Lutemax. Vit K2-menaquinone MK-7 (Vitamin K2). Each batch is purity tested.\u003c\/p\u003e","published_at":"2025-11-14T15:21:54+00:00","created_at":"2025-11-14T15:21:53+00:00","vendor":"Natroceutics","type":"","tags":["TND"],"price":3995,"price_min":3995,"price_max":3995,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":56180253950330,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"NTC-NAT-OMG-FORT","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Natroceutics Omega 3 Fortified 60s","public_title":null,"options":["Default Title"],"price":3995,"weight":0,"compare_at_price":null,"inventory_quantity":8,"inventory_management":"shopify","inventory_policy":"deny","barcode":"6009888578087","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-omg-fort.png?v=1763133722","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/31475.png?v=1763133725","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-omg-fort_6ba9aacc-a1a3-4311-b005-66e0ff28b027.png?v=1763133728"],"featured_image":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-omg-fort.png?v=1763133722","options":["Title"],"media":[{"alt":"natroceutics omega 3 fortified 60s","id":68852546503034,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2599,"width":2599,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-omg-fort.png?v=1763133722"},"aspect_ratio":1.0,"height":2599,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-omg-fort.png?v=1763133722","width":2599},{"alt":"natroceutics omega 3 fortified 60s","id":68852547060090,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1227,"width":1227,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/31475.png?v=1763133725"},"aspect_ratio":1.0,"height":1227,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/31475.png?v=1763133725","width":1227},{"alt":"natroceutics omega 3 fortified 60s","id":68852547551610,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-omg-fort_6ba9aacc-a1a3-4311-b005-66e0ff28b027.png?v=1763133728"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-nat-omg-fort_6ba9aacc-a1a3-4311-b005-66e0ff28b027.png?v=1763133728","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eSuperior Triglyceride Form (TG). Produced from Wild Alaskan pollock. High potency-EPA 400mg DHA 300mg per 1000mg capsule. Leading purity with TOTOX score of below 5 at encapsulation. Proven lutein + zeaxanthin combination - Lutemax. Vit K2-menaquinone MK-7 (Vitamin K2). Each batch is purity tested.\u003c\/p\u003e"}
You may also like:
Natroceutics Omega 3 Fortified 60s
£39.95
Superior Triglyceride Form (TG). Produced from Wild Alaskan pollock. High potency-EPA 400mg DHA 300mg per 1000mg capsule. Leading purity with TOTOX score of below 5 at encapsulation. Proven lutein +...
Quickview
{"id":15485857890682,"title":"Natroceutics Opti-Vita Complex 60s","handle":"natroceutics-opti-vita-complex-60s","description":"\u003cp\u003eA comprehensive liposomal multivitamin and mineral complex with Oxxynea® which delivers over 100 polyphenols, equivalent to consuming five portions of fresh fruit and vegetables throughout the day. Bio-Enhanced® R-Lipoic Acid supports cellular health.\u003c\/p\u003e","published_at":"2025-11-14T15:21:40+00:00","created_at":"2025-11-14T15:21:39+00:00","vendor":"Natroceutics","type":"","tags":["TND"],"price":3995,"price_min":3995,"price_max":3995,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":56180253720954,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"NTC-8216","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Natroceutics Opti-Vita Complex 60s","public_title":null,"options":["Default Title"],"price":3995,"weight":0,"compare_at_price":null,"inventory_quantity":2,"inventory_management":"shopify","inventory_policy":"deny","barcode":"6009888578216","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8216.png?v=1763133707","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/29279.png?v=1763133710","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8216_755b5c3f-20b2-4f19-b2ef-fbbe2caed338.png?v=1763133713"],"featured_image":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8216.png?v=1763133707","options":["Title"],"media":[{"alt":"natroceutics opti-vita complex 60s","id":68852544307578,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8216.png?v=1763133707"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8216.png?v=1763133707","width":1000},{"alt":"natroceutics opti-vita complex 60s","id":68852544438650,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/29279.png?v=1763133710"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/29279.png?v=1763133710","width":1000},{"alt":"natroceutics opti-vita complex 60s","id":68852544569722,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8216_755b5c3f-20b2-4f19-b2ef-fbbe2caed338.png?v=1763133713"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8216_755b5c3f-20b2-4f19-b2ef-fbbe2caed338.png?v=1763133713","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eA comprehensive liposomal multivitamin and mineral complex with Oxxynea® which delivers over 100 polyphenols, equivalent to consuming five portions of fresh fruit and vegetables throughout the day. Bio-Enhanced® R-Lipoic Acid supports cellular health.\u003c\/p\u003e"}
You may also like:
Natroceutics Opti-Vita Complex 60s
£39.95
A comprehensive liposomal multivitamin and mineral complex with Oxxynea® which delivers over 100 polyphenols, equivalent to consuming five portions of fresh fruit and vegetables throughout the day. Bio-Enhanced® R-Lipoic Acid...
Quickview
{"id":15485857857914,"title":"Natroceutics Activated B-Complex 30s","handle":"natroceutics-activated-b-complex-30s","description":"\u003cp\u003eFor an optimal daily dose of methylated B-vitamins. The liposome facilitates absorption and bioavailability of the complex, providing a major advantage to water-soluble B vitamins. Liposomal L-theanine further enhances the formulation which supports focus and cognitive function.\u003c\/p\u003e","published_at":"2025-11-14T15:21:37+00:00","created_at":"2025-11-14T15:21:37+00:00","vendor":"Natroceutics","type":"","tags":["TND"],"price":2600,"price_min":2600,"price_max":2600,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":56180253688186,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"NTC-8131","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Natroceutics Activated B-Complex 30s","public_title":null,"options":["Default Title"],"price":2600,"weight":0,"compare_at_price":null,"inventory_quantity":11,"inventory_management":"shopify","inventory_policy":"deny","barcode":"6009888578131","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8131.png?v=1763133706","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/33119.png?v=1763133708","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8131_c443dcd2-ed49-4cfa-8100-cf642ec40f28.png?v=1763133711","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8131_4fb339c7-4d3e-4337-8e08-b61f3eaa0d30.png?v=1763133713"],"featured_image":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8131.png?v=1763133706","options":["Title"],"media":[{"alt":"natroceutics activated b-complex 30s","id":68852544242042,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8131.png?v=1763133706"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8131.png?v=1763133706","width":1000},{"alt":"natroceutics activated b-complex 30s","id":68852544340346,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/33119.png?v=1763133708"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/33119.png?v=1763133708","width":1000},{"alt":"natroceutics activated b-complex 30s","id":68852544536954,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8131_c443dcd2-ed49-4cfa-8100-cf642ec40f28.png?v=1763133711"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8131_c443dcd2-ed49-4cfa-8100-cf642ec40f28.png?v=1763133711","width":1000},{"alt":"natroceutics activated b-complex 30s","id":68852544995706,"position":4,"preview_image":{"aspect_ratio":1.779,"height":562,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8131_4fb339c7-4d3e-4337-8e08-b61f3eaa0d30.png?v=1763133713"},"aspect_ratio":1.779,"height":562,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8131_4fb339c7-4d3e-4337-8e08-b61f3eaa0d30.png?v=1763133713","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eFor an optimal daily dose of methylated B-vitamins. The liposome facilitates absorption and bioavailability of the complex, providing a major advantage to water-soluble B vitamins. Liposomal L-theanine further enhances the formulation which supports focus and cognitive function.\u003c\/p\u003e"}
You may also like:
Natroceutics Activated B-Complex 30s
£26.00
For an optimal daily dose of methylated B-vitamins. The liposome facilitates absorption and bioavailability of the complex, providing a major advantage to water-soluble B vitamins. Liposomal L-theanine further enhances the...
Quickview
{"id":15485857759610,"title":"Natroceutics Glutathione SOD Advanced 30s","handle":"natroceutics-glutathione-sod-advanced-30s","description":"\u003cp\u003eLiposomal Cellg8™ delivery of glutathione. Japanese Setria™ glutathione. Shown to significantly increase both plasma and cellular glutathione levels. Bioactive Superoxide Dismutase (SOD) from French melon extract. Protected from degradation through a patented microencapsulation technology.\u003c\/p\u003e","published_at":"2025-11-14T15:21:27+00:00","created_at":"2025-11-14T15:21:26+00:00","vendor":"Natroceutics","type":"","tags":["TND"],"price":5900,"price_min":5900,"price_max":5900,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":56180253589882,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"NTC-8094","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Natroceutics Glutathione SOD Advanced 30s","public_title":null,"options":["Default Title"],"price":5900,"weight":0,"compare_at_price":null,"inventory_quantity":16,"inventory_management":"shopify","inventory_policy":"deny","barcode":"6009888578094","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8094.png?v=1763133697","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/29280.png?v=1763133702","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8094_f22105de-ea91-4973-a4c8-2be4af08a209.png?v=1763133706","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8094_d199f824-82da-4413-b36b-48053e54a2f7.png?v=1763133708"],"featured_image":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8094.png?v=1763133697","options":["Title"],"media":[{"alt":"natroceutics glutathione sod advanced 30s","id":68852543553914,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8094.png?v=1763133697"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8094.png?v=1763133697","width":1000},{"alt":"natroceutics glutathione sod advanced 30s","id":68852543914362,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1073,"width":1073,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/29280.png?v=1763133702"},"aspect_ratio":1.0,"height":1073,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/29280.png?v=1763133702","width":1073},{"alt":"natroceutics glutathione sod advanced 30s","id":68852544209274,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1760,"width":1760,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8094_f22105de-ea91-4973-a4c8-2be4af08a209.png?v=1763133706"},"aspect_ratio":1.0,"height":1760,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8094_f22105de-ea91-4973-a4c8-2be4af08a209.png?v=1763133706","width":1760},{"alt":"natroceutics glutathione sod advanced 30s","id":68852544373114,"position":4,"preview_image":{"aspect_ratio":1.779,"height":562,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8094_d199f824-82da-4413-b36b-48053e54a2f7.png?v=1763133708"},"aspect_ratio":1.779,"height":562,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ntc-8094_d199f824-82da-4413-b36b-48053e54a2f7.png?v=1763133708","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eLiposomal Cellg8™ delivery of glutathione. Japanese Setria™ glutathione. Shown to significantly increase both plasma and cellular glutathione levels. Bioactive Superoxide Dismutase (SOD) from French melon extract. Protected from degradation through a patented microencapsulation technology.\u003c\/p\u003e"}
You may also like:
Natroceutics Glutathione SOD Advanced 30s
£59.00
Liposomal Cellg8™ delivery of glutathione. Japanese Setria™ glutathione. Shown to significantly increase both plasma and cellular glutathione levels. Bioactive Superoxide Dismutase (SOD) from French melon extract. Protected from degradation through...