Short answer: Respiratory and circulatory ingredients work alongside each other to support oxygen flow and daily energy — a specific synergy claim worth reading with reasonable expectations.
Why "synergistic" is a common, persuasive marketing word
This term implies the two parts work better together than either alone — a plausible, biologically reasonable idea, though the finished kit combination itself hasn't been independently clinically tested.
What the formula's own honest disclosures suggest instead
The finished PureLung and HemoPrime formulas themselves have not undergone independent clinical trials, so results are best viewed as gentle, gradual support — a more measured framing than "synergistic support" alone might suggest.
💡 Worth knowing: this same healthy skepticism toward "synergy" language is worth applying across any multi-part supplement kit you consider.