Dupe Score 87
Hair Shampoo
B3 vs 18.21 Man
Brazilian Bondbuilder Extension… · Made 3-in-1 Body Wash, Shampoo, and Conditioner for…
92% matchSave 78%
Side-by-side comparison
B3vsGrandpa's
Brazilian Bondbuilder Extension…·Witch Hazel Shampoo by The Soap Company
Side-by-side look at B3 Brazilian Bondbuilder Extension… ($24.99) and Grandpa's Witch Hazel Shampoo by The Soap Company ($7.28) in the hair shampoo category.
Dupe Score 82Strong dupe
90% matchSave 71%
High confidenceShop the dupeAll dupes for this productB3 brand hubLuxury pick
B3
Brazilian Bondbuilder Extension…
$24.99
$0.03 / ml
Budget dupe
Grandpa's
Witch Hazel Shampoo by The Soap Company
$7.28
$0.03 / ml
| Spec | B3 | Grandpa's |
|---|---|---|
| Category | Hair Shampoo | Hair Shampoo |
| Finish | Varies | Varies |
| Coverage | Varies | Varies |
| Volume | 850.24 ml (28.8 fl oz) | 236.59 ml (8.0 fl oz) |
| Unit Price | $0.03 / ml | $0.03 / ml |
| Skin Type | All | All |
| Tags | Luxury | Budget |
Our verdict
For a fair comparison, weigh formula claims, shade/finish, and wear time — not just price. Grandpa's Witch Hazel Shampoo by The Soap Company undercuts B3 Brazilian Bondbuilder Extension… by about 70%, but the luxury option may still win on texture, longevity, or shade match depending on your priorities. Size-wise, B3 lists ~850.24 ml vs Grandpa's at ~236.59 ml — check unit price before buying.
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We watch Grandpa's Witch Hazel Shampoo by The Soap Company (currently $7.28) and email you when the price drops.
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