Bio Frost is a Psilocybe cubensis strain sold as dried mushrooms, sometimes under the alternative name “White Walker”. No published record explains who first cultivated it or what it was bred from, so its lineage is unknown. That is common in the hobby: a 2025 review notes that strain names are mostly informal and community-based, and that cultivars sold under the same name by different suppliers are often not genetically similar (Kurzbaum et al., 2025).
Some online listings give Bio Frost a scientific-sounding name, “Cryofungus frostensis”. That is not a recognised species name. Bio Frost is a strain of Psilocybe cubensis, the same species as most magic mushrooms sold in Canada.
Bio Frost mushrooms are the fruiting bodies of Psilocybe cubensis. Like every cubensis, they contain psilocybin, which the body converts to psilocin, the compound responsible for the psychedelic effects (NIDA).
The strain is recognisable by its colouring. Our Bio Frost dried mushrooms are pale cream to white, with thick, dense stems and small caps that tend to stay tight rather than opening fully. Handled areas show streaks of blue-green bruising, the “frost” that gives the strain its name. Bruising is a chemical reaction in which psilocin oxidises into blue compounds after the tissue is damaged (Lenz et al., 2020).
Two clarifications help. First, “BioFrost” is also the name of unrelated cold-therapy creams and gels, and some search results mix the two up; this page is only about the mushroom. Second, earlier versions of this guide described Bio Frost as an edible, foraged mushroom with culinary uses. That was wrong. It is a cultivated psilocybin strain, not a cooking mushroom, and wild mushrooms should never be picked and eaten on the strength of a name.
Bio Frost is often confused with Jack Frost because of the shared name and pale colour, but they are different strains. Jack Frost has a documented lineage, True Albino Teacher crossed with Albino Penis Envy; Bio Frost does not. The thick stems and tight caps of Bio Frost resemble the Penis Envy family, but without a breeding record that resemblance is only an observation, not proof of descent.
Customers and sellers usually place Bio Frost among the stronger strains, alongside pale varieties such as Albino Penis Envy. There is no published lab data to confirm that ranking. Our magic mushroom strains guide explains how strains are usually compared and why reputation is a loose guide.
No published lab figures exist for Bio Frost, so its potency is best treated as unknown until you know your batch. Controlled research shows how much cubensis varies: when 14 strains were grown under identical conditions, total tryptamine content differed by more than 7.8-fold between strains, and psilocybin varied by 13% to 23% between individual mushrooms of the same strain (Sharchaton et al., 2026). A strong reputation is a reason to start lower, not higher.
Commonly cited harm-reduction reference points for dried cubensis are roughly 0.1 to 0.3 grams for a microdose, 1 to 2.5 grams for a moderate experience, and 3.5 grams or more for a strong one. Our dosage chart and microdosing guide explain how those ranges are used. They are general reference points, not medical advice.
Psilocybin effects usually begin within 15 to 45 minutes and last four to six hours (Health Canada). Reports of Bio Frost describe strong visual effects and deep introspection, but those are personal accounts rather than measurements. NIDA notes that expectations, surroundings, dose, potency and individual biology all shape whether an experience feels blissful or frightening (NIDA).
Psilocybin can raise heart rate and blood pressure and can cause nausea, confusion or anxiety. People with heart conditions, a personal or family history of psychosis, or who take psychiatric medication face higher risks and should speak to a clinician first.
Clinical safety guidelines emphasise careful preparation, a calm and safe setting, screening for a personal or family history of psychotic disorders, and a supportive person present during the session (Johnson et al., 2008). For anything above a low dose, a sober trip sitter is the most useful precaution.
Weigh doses on a 0.01 g scale and start low with each new batch. Health Canada warns that combining mushrooms with alcohol, cannabis or other drugs raises the risk of serious side effects (Health Canada). Never drive while the effects last.
Psilocybin and psilocin are controlled substances in Canada. Health Canada states that the production, sale and possession of magic mushrooms are illegal unless authorised, for example through an approved clinical trial, a section 56 exemption, or a practitioner’s request through the Special Access Program, which has accepted psilocybin requests since 2022. Municipal non-enforcement policies do not change federal law. If you are unsure about your own situation, check current Health Canada guidance or get independent legal advice.
No. Both are pale cubensis strains, but Jack Frost has a documented True Albino Teacher × Albino Penis Envy lineage, while Bio Frost’s origin is not documented.
No. That name appears only in marketing copy and is not a recognised species. Bio Frost is a strain of Psilocybe cubensis.
No. The cold-therapy creams and gels share the name but have nothing to do with the mushroom.
It has a reputation as a strong, visual strain, but there is no published lab data, and batches vary. Start low and increase gradually.
Related reading: Compare all magic mushroom strains · Jack Frost strain guide · Albino Penis Envy explained
