first period kit for girls
Worth a lookShows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Incredible12.1%search→purchase rate — share of searches ending in a sale
Competition
Great29%top-5 click share — an open shelf
Review moat
Good1,195.66avg incumbent reviews — the moat a new listing must climb
Market size
Good£368K£368K/yr · 259K searches
Price range
Good£1.07–£30.41cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay£11.75avg listing price — sweet spot $15–$100
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Bad-8.7%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, first period kit for girls is a £368K/yr Amazon United Kingdom market (259K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Sep. Verdict: Worth a look — 59/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
first period kit for girls market data
- Units sold / yr
- 40K–50K
- avg 750–1,000/product
- Revenue / yr
- £470K–£588K
- units × avg price
- Conversion rate
- 12.1%
- Avg BSR
- #84
- Page quality
- 0%
- Prime
- 98%
- Sponsored
- 90%
- Out of stock
- 10.8%
- Avg brand age
- 30 months
- Avg seller age
- 164 days
Competition & brand share
Clicks spread well past the top 5 (29% combined) — an open shelf where new products get seen.Brands
15 rising
Sellers
64
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
29%
Top 20: 77%
Open market
11%
- Lil-Lets35%
- INNERSY16%
- Soleurfe14%
- multipieyo11%
- ZVZK7%
- London Carousel6%
- Open — no brand owns it (9 brands, 11%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -8.7% search growth over the last 90 days.Peak months: Sep · busiest ÷ quietest = 2.1×
Top first period kit for girls search terms
- lillets teen pads47K/yr
- first period kit for girls 10-1228K/yr
- period starter kit for young girls18K/yr
- girls first period starter pack8K/yr
- lillets pads16K/yr
- period kit15K/yr
- teen pads10K/yr
- first period kit for girls33K/yr
- lil lets pads12K/yr
- lil lets teens8K/yr
Top first period kit for girls products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
INNERSY Period Pants for Teenage Girls Cotton Leak Proof Menstrual Underwear Pack of 3 (8-10 Years Dots/Lake Green/Pink)
INNERSY£13.424.5★2,793 rev
Lil-Lets Teen Towels Day
Lil-Lets£1.144.8★5,141 rev
ZVZK Period Pants Heavy Flow Girls 30ML Absorb Cotton Knickers Briefs Underwear Mid Waist Hipster Menstrual Panties for teenage 8-18 Years (M 4 BLACK)
ZVZK£13.454.3★433 rev
Lil-Lets Teens Day Pads X 70 Petite Towels For Girls & Teenagers With Wings For Light to Medium Flow Unscented Soft & Breathable First Period Sanitary Towels 5 Packs of 14 Pads - Bulk Pack
Lil-Lets£5.704.8★3,453 rev
INNERSY Period Pants for Teenage Girls Cotton Menstrual Underwear Leakproof Knickers Pack of 3 (10-12 Years Colourful Black)
INNERSY£13.474.5★2,793 rev
Newest
by launch date
Soleurfe Period Pants for Teenage Girls Absorbent 50ml for Medium and Heavy flow | Bamboo Fibre Breathable Antibacterial | Reusable Period Underwear | For Teen Girls during School/Night
Soleurfe£21.72140 rev
Soleurfe Period Pants for Teenage Girls Absorbent 50ml for Medium and Heavy flow | Bamboo Fibre Breathable Antibacterial | Reusable Period Underwear | For Teen Girls during School/Night
Soleurfe£21.86140 rev
Period Travel Kit for Women & Girls 17-Piece On-The-Go Hygiene Set with Pads Liners Wipes Disposal Bags & Reusable Pouch First Period Essentials & Puberty Kit for Girls 913 Gift Ready
Pearls & Flowers£10.1812 rev
Soleurfe Period Pants for Teenage Girls Heavy Flow (50ML) with 12H Leakproof Protection Reusable Period underwear Bamboo Fiber Girls Knickers for Teens 10-12 Years Old
Soleurfe£13.91307 rev
Soleurfe Period Pants for Teenage Girls Heavy Flow (50ML) with 12H Leakproof Protection Reusable Period underwear Bamboo Fiber Girls Knickers for Teens 12-14 Years Old
Soleurfe£13.95307 rev
Trending
90-day click momentum
INNERSY Period Pants for Teenage Girls Menstrual Panties Cotton Leakproof knickers 3 Pack (10-12 Years Pink/Green/Beige)
INNERSY£12.274.5★
Soleurfe Period Pants for Teenage Girls Absorbent 50ml for Medium and Heavy flow | Bamboo Fibre Breathable Antibacterial | Reusable Period Underwear | For Teen Girls during School/Night
Soleurfe£21.864.0★
Soleurfe Period Pants for Teenage Girls Absorbent 50ml for Medium and Heavy flow | Bamboo Fibre Breathable Antibacterial | Reusable Period Underwear | For Teen Girls during School/Night
Soleurfe£21.724.0★
Soleurfe Period Pants for Teenage Girls Heavy Flow (50ML) with 12H Leakproof Protection Reusable Period underwear Bamboo Fiber Girls Knickers for Teens 10-12 Years Old
Soleurfe£13.914.6★
Soleurfe Teen Girls Period Underwear Heavy Flow Reusable Leakproof Period Knickers with 4-Layer Protection Period Pants for Teenage Girls Mid Waist Anti-Leak for 12-14 Years Old
Soleurfe£13.164.5★
What buyers say about first period kit for girls
What buyers praise and complain about, mined from review topics.What buyers love
“Comfortable and good quality”
“were of good enough fit they held securely in place”
“Great value for money”
“Theyre well made”
“Does what it says on pack”
“The fabric is so soft”
“Absorbent, soft, well made”
“The designs and patterns are all different and cute”
“Nice material”
“Not too bulky”
What buyers complain about
“Too small”
“certainly not very thick - Very Disappointing”
“Stickiness could be better”
“expensive”
“Poor quality”
“Avoid, fall apart within few washes”
“Not comfortable”
“Different to picture on listing”
“I think Im allergic to all pads”
“Horrible material, looks like a nappy”
Top return reasons
Common questions
- Is first period kit for girls profitable to sell on Amazon United Kingdom?
- The niche generates £368K/yr across 50 tracked products. 0 of 6 products launched in the last 360 days are still selling. 90-day search growth is -8.7%. Flapen's verdict: Worth a look (59/100).
- How competitive is the first period kit for girls niche?
- 15 brands and 64 sellers compete. The top 5 products take 29% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in first period kit for girls?
- Top complaints mined from reviews: Size-Overall, Thickness, Adhesion/Stickiness. The return rate is 0.1%.
- When does demand for first period kit for girls peak?
- Demand peaks in Sep; the busiest month runs 2.1× the quietest.
- What does it cost to enter the first period kit for girls niche?
- Listings span £1.07–£30.41; the average listing price is £11.75 (sweet spot $15–$100). The average incumbent carries 1,196 reviews — the moat a new listing must climb.