What we analyse
Associations and possible contributors — not causes
Six areas of information
Hair and scalp history
When changes began, how they started, where they appear, scalp symptoms and recent life events.
- Onset and pattern
- Shedding compared with usual
- Recent illness, stress, childbirth
Visible photo changes
Month-to-month comparisons of the same angles, with lighting, angle and distance consistency noted.
- Five guided angles
- Blur and lighting checks
- Comparison reliability
Laboratory-report information
Values you confirm from your own reports, summarised using the laboratory's own ranges and flags.
- Values, units and ranges
- Lab-marked high or low
- Changes across dates
Nutrition patterns
Which food categories appear in your week — not calorie counting, and never labelled good or bad.
- Food-category frequency
- Meals per day
- Water intake
Lifestyle, sleep and stress
Sleep, stress and movement trends alongside how your shedding feels day to day.
- Sleep hours
- Stress rating
- Exercise
Products, supplements and treatment consistency
What you use, how consistently, and any reactions — without ever advising changes to prescriptions.
- Routine completion
- Reactions
- Start and stop dates
Possible contributing areas you may see
Each comes with why it appeared, which answers contributed, what's missing, a confidence level (limited, moderate or stronger), what you can track, and what you might discuss with a clinician.
Nutrition-related factors
Eating patterns and lab flags commonly discussed alongside hair shedding.
Stress and lifestyle factors
Stress, sleep and recent life events that may be relevant to timing.
Scalp-related factors
Itching, flaking, oiliness, dryness, redness or tenderness.
Product or styling factors
Products, heat, tension and reactions.
Treatment-consistency factors
Whether routines are being followed consistently enough to evaluate.
Medical or hormonal factors requiring professional discussion
Information best interpreted by a clinician — StrandLens doesn't assess these.
Insufficient information
Shown honestly when there isn't enough to say anything useful.
What StrandLens will never do
- Confirm a diagnosis or name the definitive root cause
- Measure follicle counts or hair density from ordinary photographs
- Invent or estimate laboratory values
- Prescribe medication or suggest changing prescription treatment
- Promise regrowth or guarantee any result
All recommendation rules live in a configurable knowledge base designed for review by a licensed dermatologist. Until that review is complete, guidance is labelled TEST MODE.
Read our safety approach