Charlie's Soap Laundry Booster for Hard Water
Single-ingredient water softener booster added to the wash alongside detergent.
- 2.64 lbSize
- YesFragrance-free
- $29.99List price
How the Laundry Booster for Hard Water stacks up
Against the 14 cloth diaper detergents we track. The shaded band is where the middle half of them fall; the dot is this one.
Within the typical range for cloth diaper detergents ($24.99 to $29.99).
What sets the Laundry Booster for Hard Water apart
Measured against the 14 cloth diaper detergents we compare, from each maker's published specs.
Next to its closest matches
- Rockin Green Funk Rock Ammonia BouncerNext to it, the Laundry Booster for Hard Water is $5 more.
Cloth diapers and washers
| Cloth diapers | The maker: "One of our most popular uses is for cloth diapers." |
|---|---|
| HE washers | Yes, per the maker |
Listed features
- Fragrance-free (per the maker)
Worth checking
- Not a detergent on its own
Where to buy the Laundry Booster for Hard Water
Prices and availability change. We may earn a commission from some links.
- Check for recalls: Search the agency's recall list with the model number and date code from the label: FDA recalls list.
- Keep household products out of children's reach. Poison Control: 1-800-222-1222 (poison.org). Check the label and the maker's instructions, and ask your pediatrician about your child.
Full specs
| Charlie's Soap Laundry Booster for Hard Water | |
|---|---|
| Type | Cloth diaper detergent or treatment |
| List price | $29.99 |
| Size | 2.64 lb |
| Other ingredients | Potassium diphosphate |
| Fragrance-free | Yes, per the maker |
| HE washers | Compatible, per the maker |
More detergents
- Rockin GreenClassic Rock Laundry Detergent$26$26.99
- Rockin GreenHard Rock Laundry Detergent$26$26.99
- Rockin GreenFunk Rock Ammonia Bouncer$24$24.99
- Allen's NaturallyNatural Powder Laundry & Cloth Diaper Detergent$24$24.95
- Charlie's SoapNatural Powder Laundry Detergent
- Charlie's SoapNatural Liquid Laundry Detergent
- Charlie's SoapLaundry Detergent Packets
- GroViaMighty Bubbles Laundry Treatment$23$23.95
Laundry Booster for Hard Water: questions answered
From Charlie's Soap's published specs, last checked 2026-11-10.
Is the Charlie's Soap Laundry Booster for Hard Water OK around kids?
Keep household products out of children's reach. Poison Control: 1-800-222-1222 (poison.org). Check the label and the maker's instructions, and ask your pediatrician about your child.
Still wondering? Write to us at hello@cribpicks.com and we'll look it up.
Where these specs come from
Last checked 2026-11-10. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.