Medical reviewer
ND · Naturopathic doctor, Vancouver BC
Dr. Sarah Mitchell is a Vancouver-based naturopathic doctor with ten years of clinical experience supporting women’s hormonal health, thyroid conditions and perimenopause. She holds a Doctorate of Naturopathic Medicine from the Canadian College of Naturopathic Medicine (CCNM) and is a registered member of the College of Naturopaths of British Columbia. Sarah reviews UnityLife’s supplement and women’s-health content. She is an ardent evidence-first practitioner — her rule is “if Health Canada doesn’t list it, I don’t recommend it.”
Reviewed 24 articles on UnityLife
Ashwagandha has the strongest evidence of any “adaptogen” for stress and cortisol reduction. Effective dose: 300–600 mg/day of KSM-66 or Sensoril. What it does, who shouldn’t take it, and how to choose.
Retinol is the most studied anti-aging ingredient ever. Start at 0.025 % once or twice a week, build over 3 months, always pair with SPF. The exact ramp protocol that prevents the “retinol uglies”.
Most hair vitamins are marketing — but iron, vitamin D, and biotin are evidence-supported in actual deficiency. What to test, what works, what doesn’t, and when to see a dermatologist.
White noise machines mask traffic, snoring, and household sounds that fragment sleep. Pick a unit with adjustable volume + non-looping audio. Top picks from $30 to $150 in Canada.
Le bisglycinate est la forme de magnésium la mieux absorbée et la plus douce sur les tablettes canadiennes. Voici ce qu’il fait réellement, la dose appropriée et le NPN à chercher sur l’étiquette.
L’ashwagandha est la plante adaptogène la plus étudiée contre le stress. Voici ce que les essais randomisés démontrent réellement, la dose efficace et les précautions à connaître au Canada.
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Le glycinate (ou bisglycinate) de magnésium est la forme la plus utilisée au Canada pour aider au sommeil. Voici la dose efficace selon les essais cliniques, le moment idéal de prise et les précautions.
L-ascorbic acid at 10–20 % pH 2.5–3.5 is the gold standard. Brightens, supports collagen, and adds modest UV defence. Storage and stability matter more than the price tag.
Weighted blankets at 8–12 % of body weight show modest reductions in anxiety and improved sleep quality in trials. Three picks suited for Canadian winters, plus what to skip.
Niacinamide is one of the most well-evidenced skincare actives sold in Canada. Here is what it does, the right concentration and pairing, and the best Canadian brands at every budget.
Hyaluronic acid is the most-bought hydration serum in Canadian skincare aisles — and one of the easiest to use wrong. Here is what it actually does, why molecular weight matters, and the best products at every budget.
At-home derma rollers promise smoother skin, faded scars and less hair loss. Here is what the evidence actually supports, the needle length you should pick, and the safety boundaries you cannot cross at home.
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Body oil is the underrated cousin of body lotion — richer, longer-lasting and arguably more effective for dry Canadian winters. Here is what to look for, how to apply it, and the Canadian-friendly brands.
Body scrubs feel productive but can do more harm than good if used wrong. Here is the dermatologist-aligned guidance on frequency, ingredient choice, and the best Canadian options.
Sunscreen is the highest-impact, lowest-effort piece of any skincare routine. Here is what the Canadian Dermatology Association actually recommends, the difference between mineral and chemical filters, and the best products at every budget for 2026.
Les douches froides ont des bénéfices réels sur la récupération musculaire et l’humeur, mais sont surcotées pour la perte de poids et l’immunité. Voici l’état de la science.
Dandruff isn’t dry scalp — it is a fungal-driven condition that responds to specific active ingredients. Here is which active to pick for your symptoms, and the best dandruff shampoos available in Canada.
Spearmint tea has the strongest evidence behind any common kitchen herb for hormonal-acne and PCOS-adjacent symptoms. Here is what randomised trials actually show, how to brew it for therapeutic effect, and which Canadian brands to look for.
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A packet of Emergen-C has 1000 mg of vitamin C plus a handful of B-vitamins. The marketing says “immune support.” Cochrane and the NIH say something more specific. Here is what the evidence actually shows.
Ginger shots have moved from juice-bar specials to fridge-aisle staples. Here is what the research actually supports, a straightforward DIY recipe that costs a fifth of the bottled price, and the best Canadian brands.
La crème solaire est le geste anti-âge le mieux étayé par la science. Voici comment choisir au Canada (DIN obligatoire) selon votre type de peau.
Sea buckthorn is a tart orange berry that grows wild across the Canadian prairies and is being studied for skin, eye and metabolic health. Here is what the evidence supports, what it does not, and the Canadian brands worth knowing about.
La niacinamide est l’actif le mieux toléré du soin de la peau — efficace pour pores, rougeurs et taches. Voici comment choisir.
L’acide hyaluronique est l’hydratant topique le mieux étudié. Voici comment choisir un sérum efficace en pharmacie québécoise.
