Voice-of-Customer — Hairtamin Supplements

1,322 canonical reviews · 3 brands · window: all time · generated 2026-06-24

Competitive openings

Comparability: all brands are from the same source (Amazon), so complaint rates are directly comparable. Amazon: Hairtamin, Nutrafol, Vegamour (avg 3.0★).

Where rivals are losing customers — openings (Amazon cohort)

Competitor aspects with the highest volume-weighted complaint signal. Each is an evidence-backed opening; the strategist decides how (or whether) to play it. Click to read the reviews.

Nutrafol · Side effects health — 20% of reviewers complain (n=955)
Nutrafol · Efficacy results — 19% of reviewers complain (n=955)
Nutrafol · Value price — 18% of reviewers complain (n=955)
Nutrafol · Time to results — 13% of reviewers complain (n=955)
Nutrafol · Dosage regimen — 8% of reviewers complain (n=955)
Nutrafol · Taste smell swallowability — 8% of reviewers complain (n=955)

What customers love about Hairtamin — strengths to defend

The client's most-praised aspects (its own reviews, so clean — no cross-source caveat). Lean into these. Click to read the praise.

Efficacy results
26%
n=291
Time to results
8%
n=291
Hair quality feel
4%
n=291
Dosage regimen
3%
n=291
Taste smell swallowability
2%
n=291

Hairtamin vs Vegamour — the only like-for-like comparison

Both are Amazon reviews, so this head-to-head is valid (unlike cross-source rankings). Largest gaps:

AspectHairtaminVegamourread
Product integrity quantity7%36%client better
Service subscription shipping2%20%client better
Efficacy results17%7%client worse
Side effects health8%1%client worse
Time to results5%3%client worse

Competitive complaint matrix

Each cell = share of that brand's reviews that mention the aspect negatively — redder is worse. Brands side by side; '—' = below min-n. Hairtamin (highlighted) is the client.

AspectHairtaminNutrafolVegamour
Product integrity quantity7%6%36%
Efficacy results17%19%7%
Value price11%18%12%
Side effects health8%20%1%
Service subscription shipping2%5%20%
Time to results5%13%3%
Taste smell swallowability4%8%4%
Dosage regimen0%8%3%
Ingredients formulation2%4%4%
Worsened condition3%6%1%
Packaging presentation1%1%1%
Scent topical feel0%1%
Scalp skin reaction1%0%
Hair quality feel0%1%

Competitive praise matrix

The mirror of the complaint matrix: each cell = share of that brand's reviews that mention the aspect positivelygreener is better. This is what each brand is loved for. Aspects ordered most-praised first. Hairtamin (highlighted) is the client.

AspectHairtaminNutrafolVegamour
Efficacy results26%28%36%
Taste smell swallowability2%0%32%
Time to results8%10%7%
Hair quality feel4%5%4%
Ingredients formulation2%2%4%
Dosage regimen3%2%1%
Packaging presentation0%4%
Value price2%1%3%
Side effects health1%1%
Product integrity quantity0%0%3%
Service subscription shipping1%1%
Scent topical feel0%
Usage context lifestage0%
Scalp skin reaction0%

Complaint-rate trends over time

Annual complaint rate per brand for the top aspects. Each row is one brand tracked against itself (same source over time), so trends are valid where cross-brand rankings aren't. Years with too few reviews are suppressed ('—').

Product integrity quantity

Brand20222023202420252026
Hairtamin9%17%6%6%
Nutrafol9%3%7%6%

Efficacy results

Brand20222023202420252026
Hairtamin34%28%11%6%
Nutrafol17%19%21%19%

Value price

Brand20222023202420252026
Hairtamin22%14%10%5%
Nutrafol15%25%19%16%

By aspect — who leads, who lags

Brands ranked by complaint rate within each aspect. Click a brand to read the actual reviews (evidence spans highlighted).

Product integrity quantity

Vegamour
36%
n=76
Hairtamin
7%
n=291
Nutrafol
6%
n=955

Efficacy results

Nutrafol
19%
n=955
Hairtamin
17%
n=291
Vegamour
7%
n=76

Value price

Nutrafol
18%
n=955
Vegamour
12%
n=76
Hairtamin
11%
n=291

Side effects health

Nutrafol
20%
n=955
Hairtamin
8%
n=291
Vegamour
1%
n=76

Service subscription shipping

Vegamour
20%
n=76
Nutrafol
5%
n=955
Hairtamin
2%
n=291

Time to results

Nutrafol
13%
n=955
Hairtamin
5%
n=291
Vegamour
3%
n=76

Taste smell swallowability

Nutrafol
8%
n=955
Vegamour
4%
n=76
Hairtamin
4%
n=291

Dosage regimen

Nutrafol
8%
n=955
Vegamour
3%
n=76
Hairtamin
0%
n=291
How to read this. Every number is computed in SQL over a governed metric layer (the model never generates figures); expand any brand to see the verbatim review quotes (evidence spans highlighted) behind it.
Window & lanes. Headline comparison = all time; trends = full history (within-brand, period-normalized). Records outside the window are retained, excluded from the comparison only.
Limitations. v1 measures solicited reviews only (Amazon + onsite) — selection-biased toward extremes; ambient social/forum voice is out of scope. Cells below min-n are suppressed. Taxonomy v1.0 is machine-proposed + PM-curated, pending human domain validation; per-aspect precision/recall is reported only where a human gold set exists.