relation: http://repository.uhamka.ac.id/id/eprint/17998/ title: The Effect of HPMC Concentration as a Gelling Agent on Color Stability of Copigmented Blush Gel Extract of Purple Sweet (Ipomoea Batatas (L.) Lam.) creator: Fitria Nugrahaeni, Fitria subject: R Medicine publisher: IOP Conference Series: Earth and Environmental Science type: Article type: PeerReviewed format: text language: en identifier: http://repository.uhamka.ac.id/id/eprint/17998/1/turnitin%20the%20effect%20gel%20ipomea%20batatas.pdf identifier: Fitria Nugrahaeni, Fitria The Effect of HPMC Concentration as a Gelling Agent on Color Stability of Copigmented Blush Gel Extract of Purple Sweet (Ipomoea Batatas (L.) Lam.). IOP Conference Series: Earth and Environmental Science.