Bio-Oil vs grace & stella

Questions and answers

Research behind their key ingredients

• Benefits of topical hyaluronic acid for skin quality and signs of skin aging: From literature review to clinical evidence

  Sodium hyaluronate · Dermatologic Therapy, 2022

• Topical use of dexpanthenol in skin disorders

  Panthenol · American Journal of Clinical Dermatology, 2002

• Anti-aging and brightening effects of a topical treatment containing vitamin C, vitamin E, and raspberry leaf cell culture extract: A split-face, randomized controlled trial

  Tocopherol · Journal of Cosmetic Dermatology, 2020

• The 24-hour skin hydration and barrier function effects of a hyaluronic 1%, glycerin 5%, and Centella asiatica stem cells extract moisturizing fluid: an intra-subject, randomized, assessor-blinded study

  Glycerin · Clinical, Cosmetic and Investigational Dermatology, 2017

• A new topical panthenol-containing emollient: Results from two randomized controlled studies assessing its skin moisturization and barrier restoration potential, and the effect on skin microflora

  Panthenol · The Journal of Dermatological Treatment, 2017

• Comedogenicity in rabbit: some cosmetic ingredients/vehicles

  Isopropyl myristate · Cutaneous and Ocular Toxicology, 2007

• Influence of vitamin E acetate on stratum corneum hydration

  Tocopheryl acetate vitamin e · Arzneimittel-Forschung, 1998

• The effect of a vitamin A palmitate and antioxidant-containing oil-based moisturizer on photodamaged skin of several body sites

  Retinyl palmitate vitamin a · Journal of Cosmetic Dermatology, 2013

• Evaluation of the Efficacy and Safety of a Panthenol-Enriched Mask for Skin Barrier Recovery After Facial Laser Treatment: Results of a Double-Blind Randomized Controlled Study

  Panthenol · Journal of Cosmetic Dermatology, 2025

• Functional properties and skin care effects of sodium trehalose sulfate

  Trehalose · Skin Research and Technology, 2024

Behind this comparison

Lovi compares products by their fit scores, calculated from the full ingredient list with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.