Schisandra chinensis

Tier 3 — weak evidence · Adaptogen · Liver · Cognition

Five-flavour berry with lignans (schisandrin A/B/C, gomisin) that show liver-protective, mild cognitive-supportive, and adaptogenic effects in small RCTs. CYP3A4 induction at higher doses can lower levels of statins, immunosuppressants, and other CYP3A4 substrates — caution.

Dose: 500-1,000 mg standardised extract daily