Homocysteine is an amino acid and byproduct of methionine metabolism. High levels of homocysteine may indicate a vitamin deficiency or MTHFR gene mutation. Over time, excessive levels of homocysteine can damage the blood vessels and lead to a higher risk of heart attack or stroke. Diagnostic Blood Test:
![Total DHT [LC/MS] & Free DHT [Equilibrium Dialysis] lab test from Marek Diagnostics](https://cdn.shopify.com/s/files/1/0709/7427/5858/files/Total-DHT-_LCMS_-and-Free-DHT-_Dialysis_9aee01b7-1401-4e40-8a15-cedbed7041ff.webp?v=1776176346&width=256)
![Estradiol, Sensitive [LC/MS-MS] lab test from Marek Diagnostics](https://cdn.shopify.com/s/files/1/0709/7427/5858/files/Estradiol_-Sensitive-_LCMS-MS_66a21fa4-a01c-4873-81ae-aa1fe8e1238a.webp?v=1776176243&width=256)
![Pregnenolone [LC/MS] lab test from Marek Diagnostics](https://cdn.shopify.com/s/files/1/0709/7427/5858/files/Pregnenolone-_LCMS_40741e41-2445-46cb-9bfc-0251c7f2d8a3.webp?v=1776176354&width=256)
![ADMA & SDMA [LC/MS] lab test from Marek Diagnostics](https://cdn.shopify.com/s/files/1/0709/7427/5858/files/ADMA-and-SDMA-_LCMS_2a4939a4-e873-4756-bfef-f285b9781a2d.webp?v=1776176348&width=256)
![Sirolimus (Rapamycin/Rapamune), Whole Blood [LC/MS-MS] lab test from Marek Diagnostics](https://cdn.shopify.com/s/files/1/0709/7427/5858/files/Sirolimus-_Rapamycin_-Whole-Blood-_LCMS-MS_57db679f-29ab-4730-b874-e3b009707619.webp?v=1776176326&width=256)
![Magnesium, RBC [ICP/MS] lab test from Marek Diagnostics](https://cdn.shopify.com/s/files/1/0709/7427/5858/files/Magnesium_-RBC-_ICPMS_17082742-a8c7-4074-8839-0941d65e1a31.webp?v=1776176352&width=256)
![Reverse T3 [LC/MS] lab test from Marek Diagnostics](https://cdn.shopify.com/s/files/1/0709/7427/5858/files/Reverse-T3-_LCMS_125da98c-6590-4521-b694-5b1141082ad0.webp?v=1776176406&width=256)
![Vitamin C [LC/MS-MS] lab test from Marek Diagnostics](https://cdn.shopify.com/s/files/1/0709/7427/5858/files/Vitamin-C_dd0f177a-f21b-4e6b-a9bb-f8d17ad54540.webp?v=1776176378&width=256)
![Copper, Serum [ICP/MS] lab test from Marek Diagnostics](https://cdn.shopify.com/s/files/1/0709/7427/5858/files/Copper_-Serum-_ICPMS_91077ddd-97cc-4b43-abd0-05f64737162d.webp?v=1776176364&width=256)
![Copper, RBC [ICP/MS] lab test from Marek Diagnostics](https://cdn.shopify.com/s/files/1/0709/7427/5858/files/Copper_-RBC_bb36fc12-3c99-49e9-952d-7d8a637d44ee.webp?v=1776176303&width=256)
