Scope: supplies > personal > tweezers — manual spring tweezers for grooming, ingrown-hair and splinter use, and electric epilators for mechanical hair removal. One register, split by `product_type`. Out of scope: electronics/lab/SMD tweezers, stamp tongs, surgical forceps, jewelry/watchmaking/aquascaping/kitchen tweezers — sibling leaves.

Seed:
1. Tweezers equivalent of harvest_date: whether the two tips were fused and hand-filed to meet flush, vs bent from one stamped blank — rarely a listed field, but it decides whether the tweezer pulls hair free or crushes/breaks it.
2. A nurse would notice first: whether the tip material/finish can be wiped down before reuse on broken skin (ingrown hair, splinter) — an infection-control angle a typical beauty buyer wouldn't check.

Sources:
[wikipedia_tweezers] https://en.wikipedia.org/wiki/Tweezers — tip shapes, fused-vs-bent construction, cross-locking action, ceramic tips — fetched excerpt
[wikipedia_epilator] https://en.wikipedia.org/wiki/Epilator — mechanism history (spring/disc/plate), corded/cordless, wet/dry pain reduction, results vs shaving — fetched excerpt
[tweezerman_how_to_use] https://www.tweezerman.com/pages/how-to-use — slant=brows, point=ingrown/fine hair, mini size, "hand-filed" claim — fetched excerpt
[tweezerman_point_tweezers] https://www.tweezerman.com/collections/point-tweezers — stainless/titanium-coated materials, ingrown/splinter use — fetched excerpt
[philips_epilators_category] https://www.philips.co.uk/c-m-pe/epilators — 2-speed, legs/body/bikini/feet coverage tiers — fetched excerpt
[philips_satinelle_beautyset9900] https://www.philips.co.uk/c-m-pe/epilators/beauty-set-9900 — wet&dry, cordless 60min, ceramic tweezers, 360° LED light — fetched excerpt
[remington_epilators_collection] https://www.remingtonproducts.com/collections/epilators — multiple speeds, separate heads for sensitive zones, wet/dry models — fetched excerpt
[aad_razor_bump_remedies] https://www.aad.org/public/everyday-care/skin-care-basics/hair/razor-bump-remedies — never pluck inside an inflamed bump; scarring risk — fetched excerpt
[wikipedia_iec60335_list] https://en.wikipedia.org/wiki/List_of_IEC_standards — IEC 60335 = household electrical appliance safety — fetched excerpt

Branches:
product_type=tweezers -> ask tip_shape; makes irrelevant all epilator facets (epilation_mechanism, wet_dry_use, power_source, speed_settings, treatment_area_coverage, skin_guide_light) — tweezer and epilator spec sets don't overlap except tip_material, which stays relevant to both (ceramic/stainless apply to epilator tweezer plates too).
product_type=epilator -> ask wet_dry_use; makes irrelevant all manual-tweezer-only facets (tip_shape, construction_type, action_mechanism, tip_alignment_finish, size_category).

Noise (brand-sheet rows left out):
- Tweezerman color/finish options (rose gold, black, gold, red) — cosmetic, not a functional spec.
- Tweezerman free lifetime sharpening service — brand loyalty perk, not a comparable cross-brand spec.
- Listed prices ($25.50–$36.00, $20.99) — price is never a facet.
- Philips series/tier names (4000/8000/9000/9900 Beauty Set) — marketing tier names; captured functionally via treatment_area_coverage, speed_settings, skin_guide_light instead.
- Exact attachment counts (7/8/9/12) and exact battery life (60 min) — single-sourced numbers, no second confirming source this run; dropped per the two-source rule, kept only as categorical tiers.
- "Removes hairs as short as 0.5mm" claim — single-sourced number (Philips only); dropped rather than stated as fact.
- Wikipedia's non-grooming tweezer uses (electronics/SMD, stamp tongs/philately, surgical forceps, jewelry/watchmaking, aquascaping, kitchen pin-boning, gold panning) — out of scope for this leaf; live in other taxonomy leaves.
- Pain-reduction user techniques (pre-shower soak, numbing cream, lower speed) — usage advice, not a product spec; folded into mechanism text instead.
- Regrowth duration (3–6 weeks) and waxing/shaving comparison — category-level fact true of all epilators, not a per-product differentiator; folded into tradeoffs instead.

Corrections (2026-10-26):
- Added facet `bonus_attachment_type` (none/exfoliation/shaver/both) — wikipedia_epilator's "exfoliation head" and philips_epilators_category's "attachments for shaving, exfoliation, pedicure" named a recurring attachment function no facet captured; added to tweezers-branch makes_irrelevant too.
- Added `philips_satinelle_beautyset9900` to `treatment_area_coverage` evidence — re-fetched philips_epilators_category and remington_epilators_collection and confirmed neither contains "bikini"/"feet" wording statically; the beautyset9900 page does ("For face, body, bikini and feet").
- Swapped `tip_shape`'s slant evidence from `tweezerman_point_tweezers` to a new ref `tweezerman_slant_tweezers` — re-fetched both tweezerman_how_to_use and tweezerman_point_tweezers and found no "brow" page content on either (only nav boilerplate); the Slant Tweezers collection page's meta description ("Expertly shape your brows with award-winning full slant tweezers...") is the real, verified match.
- Promoted `wet_dry_use` into top-level `splits[]` with its own rationale/skip_if_known and added `split` to its roles, so the epilator branch narrows with the same formal depth as the tweezer branch.
- Changed `epilation_mechanism` backfill_cost from medium to low — its own note already implies near-zero research for modern listings (default to tweezer_plate); reworded the note to reserve closer checking for legacy/disc-marketed products.