unspecified/undisclosed form

unspecified/undisclosed form is a unrated form of Phosphatidylserine, used in 801 on-market products .

Why this tier: Label discloses phosphatidylserine mass without distinguishing soy-, sunflower- or other-derived material (raw_form often says "Soy" or "Sunflower Lecithin"); no verified head-to-head comparison between sources.

Source: Kato-Kataoka A et al. 2010, J Clin Biochem Nutr 47(3):246-255, PMID 21103034 (soy-derived); Friling M et al. 2025, Nutr J 25(1):3, PMID 41318468 (sunflower-derived, 100 mg/day in children, no difference in primary outcomes)

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