[object Object]
| Ingredient | Risk Level | Notes |
|---|---|---|
| Erythorbic Acid | Low Risk | Antioxidant stabilizer; low concern |
| Hydrogen Peroxide (developer) | Caution | Oxidizing agent in developer |
| Lead Acetate | Avoid | Heavy metal colorant; FDA banned in 2018 but some formulations may predate ban; neurotoxic cumulative poison |
| p-Phenylenediamine (PPD) | Avoid | Strong sensitizer; severe allergic reactions reported; linked to bladder cancer |
| Resorcinol | Avoid | Endocrine disruptor; thyroid toxicant; skin sensitizer |