A serum formulated with bacteriophage technology designed to target acne-prone skin and support skin clarity.
Guru Score
The Guru Score: every expert's verdict on a product, in one simple number.
Under the score you'll see how many experts weighed in, or "Early verdict" while only a few have. Paid takes count for half in the score.
Guru Certified means at least 6 experts, a score of 85% or more, and almost no Nays.
How we score →Mixed
Early verdict · Few reviews so farWhat the gurus are saying
This serum divides the gurus. One dermatologist expresses skepticism about bacteriophage claims for acne without published clinical evidence, while another expert praises the brand's technology and formulas, calling the Fortify Serum her favorite from the line. The main caveat for anyone considering it: the full three-step system carries a steep price tag, though the serum alone may feel more approachable.
What they liked
What they flagged
Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.
Independent of what the gurus think, this is what the published research supports about the main active ingredients here.
A serum formulated with bacteriophage technology designed to target acne-prone skin and support skin clarity.
The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 64%.
Phyla Fortify Serum holds a Guru Score of 64%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.
Phyla Fortify Serum is generally suited to acne-prone skin.
Lower-priced serums the gurus still rate highly, versus this mid-range pick.
See how they stack up →



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