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Adrenal Cortex

Adrenal Cortex shows low returns (0.0%), but a concentrated shelf (top 5 take 100% of clicks) keeps it on the watch list.

Flapen Score

50
Worth a look

Top 44% of 14,768 Health & Household niches · +1 vs the category median of 49

Market size 46Growth 53Conversion 96Competition 0Returns 100Price range 95Avg price 95Brand share 0Review moat 45Quality gap 33
This niche Category average · 14,768 niches

Is Adrenal Cortex profitable on Amazon?

According to Flapen's Amazon United States niche tracking, Adrenal Cortex is a $248K/yr Amazon United States market (63K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 50/100.

Adrenal Cortex: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved +24.5% over the last 90 days and 14.3% of searches end in a purchase.

$248K

revenue / yr

Units sold / yr10K
Search volume / yr+24.5%63K
Conversion rate14.3%
Avg price$27.60

Who owns the niche?

The top 5 brands hold 100% of demand, so 0% of the market is open.

0%

open market share

Brands · sellers3 · 4
Top-5 product click share100%
Open market0%
Avg brand age90 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.

0/100

page quality · 4 products

Sponsored placement75%
New entrants (1y)1· 1 succeeded
Avg rating4.5★
Avg reviews1,984

Top Adrenal Cortex products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

$0$62K$124K$186K$248K1001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

3 rising

Sellers

4

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

0%

  • THORNE90%
  • JUST INGREDIENTS5%
  • Pure Encapsulations5%
  • Open — no brand owns it (0%)

Adrenal Cortex demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume63KCVR14.3%Products4Brands3Top 5 Brands100%OOS Rate5.8%Rating4.5★Reviews1,984Avg BSR#497
2K1KSpike '24Prime Day '25Spike '25DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Top Adrenal Cortex search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • thorne adrenal cortex23K/yr
  • just ingredients adrenal complex15K/yr
  • thorne cortex adrenal support3K/yr
  • adrenal support thorne4K/yr
  • thorne cortisol4K/yr
  • thorne cortisol manager5K/yr
  • adrenal complex just ingredients3K/yr
  • thorne adrenal support3K/yr
  • thorne adrenal2K/yr

What reviews say buyers love and hate about Adrenal Cortex

What buyers mention most, as a share of all reviews.

What buyers love

71% of reviews
Quality-Overall13%

Great quality, love all of just ingredients supplements

Sleep Quality10%

Helps you sleep

Vitamin8%

very useful and effective vitamins

Magnesium8%

best absorbed magnesium that I have found

Energy Level7%

Energy and Alertness

What buyers complain about

77% of reviews
Side Effects16%

Side Effects Aren't Worth It

Sleep Quality14%

Destroyed my sleep

Functionality-Overall10%

Didnt work for me

Acid Regulator/Stomach Ache Relief8%

Terrible for you stomach

Dosage8%

The challenge for me is that Im taking several other supplements at the same time

Adrenal Cortex return rate & reasons

Why buyers send it back, as a share of all return requests.

0.0%

Return rate

0%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Vitamin
33%
2Functionality-Overall
33%
3Dosage
33%

Common Adrenal Cortex questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Adrenal Cortex 50/100 on Amazon United States — Worth a look. The niche generates $248K/yr across 4 tracked products. 1 of 1 products launched in the last 360 days are still selling. Search demand moved +24.5% over the last 90 days.
Search demand for Adrenal Cortex on Amazon United States is steady year-round — the busiest month runs 1.5× the quietest.