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rs2180439(C;T)

From SNPedia

Increased risk of Male Pattern Baldness.
Is agenotype
ofrs2180439
Gene
Chromosome20
Position21,872,462
mentionedby
Magnitude2.5
ReputeBad
Geno Mag Summary
(C;C) 2 Reduced risk of Male Pattern Baldness.
(C;T) 2.5 Increased risk of Male Pattern Baldness.
(T;T) 3 2x increased risk of Male Pattern Baldness.

One copy of the risk allele, and one copy of the normal allele. Verified in Europeans and Asians. Family Tree DNA, which tends to skew heterozygous results like this in the most positive light, reports this as less likely to go bald, but 23andMe doesn't mention it.