DetoxiGenomic tests, Yasko's DNA Methylation Pathway Analysis, and 23andme.com's tests do have some overlap, but there are also some differences:
The DetoxiGenomic test is focusing on Phase I & II liver detox, and does not (in my opinion) adequately cover methylation (they only look at COMT, not MTHFR or other mutations that Yasko tests).
DetoxiGenomic Test Profile
Phase I Detoxification
Cytochrome P-450
CYP1A1
CYP1B1
CYP2A6
CYP2C9
CYP2C19
CYP2D6
CYP2E1
CYP3A4
Phase II Detoxification
Methylation
COMT V158M
Acetylation (N-acetyl transferase)
NAT1 R64W
NAT1 R187Q
NAT2 I114T
NAT2 R197Q
NAT2 G286E
NAT2 R64Q
NAT2 K268R
Glutathione Conjugation (Glutathione s-transferase)
GSTM1 1p13.3
GSTP1 I105V
GSTP1 A114V
Oxidative Protection
SOD1 G93A
SOD1 A4V
SOD2 A16V
Yasko's DNA Methylation Pathway Analysis tests the following:
COMT V158M
COMT H62H
COMT 61
VDR Taq
VDR Fok
MAO A R297R
ACAT 102
MTHFR C677T
MTHFR 3
MTHFR A1298C
MTR A2756G
MTRR A66G
MTRR H595Y
MTRR K350A
MTRR R415T
MTRR S257T
MTRR 11
BHMT 1
BHMT 2
BHMT 4
BHMT 8
AHCY 1
AHCY 2
AHCY 19
CBS C699T
CBS A360A
SUOX S370S
SHMT C1420T
NOS D298E
23andme.com does test for one MTHFR mutation and some of the other methylation mutations, but does not include all of the same list of mutations Yasko tests for. See this FAQ answer for more info:
/customercare.23andme.com/entries/23069087-Does-the-23andMe-service-include-analysis-of-the-MTHFR-gene-I've had the DetoxiGenomic and Yasko DNA Methylation Pathway Analysis tests done, and have the test kit for 23andme.com but haven't sent in my sample yet.