Research Article
Assessment of Lemon Balm (Melissa officinalis L.) Hydrogels: Quality and Bioactivity in Skin Cells
Table 1
Composition of experimental lemon balm hydrogels.
| | Composition (%) | Gels | | N1 | N2 | N3 | N4 | N5 | N6 | N7 | N8 | N9 |
| | Carbomer 980 | 0.5 | 1.0 | 1.5 | 0.5 | 0.5 | 0.5 | — | — | — | | Methylcellulose 15cP | — | — | — | 1.0 | 2.0 | 4.0 | 1.0 | 2.0 | 4.0 | | Propylene glycol | 20.0 | 20.0 | 20.0 | 20.0 | 20.0 | 20.0 | 20.0 | 20.0 | 20.0 | | 1.0% NaOH | qs ad pH 7 | qs ad pH 7 | qs ad pH 7 | qs ad pH 7 | qs ad pH 7 | qs ad pH 7 | — | — | — | | Melissa officinalis (L.) dry extract | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | | Purified | qs ad 100.0 | qs ad 100.0 | qs ad 100.0 | qs ad 100.0 | qs ad 100.0 | qs ad 100.0 | qs ad 100.0 | qs ad 100.0 | qs ad 100.0 |
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