The science
The cream's effectiveness on very dry skin rests on a double occlusive over a humectant core, and each element is well studied. Mineral oil, its second ingredient, was reviewed by Rawlings and Lombard in the International Journal of Cosmetic Science in 2012 as a chemically inert, non-comedogenic, non-sensitising occlusive that reduces transepidermal water loss with a tolerance record superior to many plant oils. Beeswax, twelfth, adds a semi-solid wax layer that persists on the skin longer than a fluid oil, which is the mechanistic reason this jar outlasts the brand's lighter creams on hands and heels. Glycerin, seventh, is the reference humectant, and a 2025 review in the International Journal of Dermatology of the mechanisms behind basic emollients for xerosis cutis sets out why binding water in the stratum corneum with a humectant while an occlusive retards its evaporation restores hydration and barrier function more effectively than either alone. Honey extract at tenth contributes additional humectant sugars; a 2024 review in the International Journal of Dermatology of honey therapies for dermatological disorders supports honey's moisturizing and soothing properties while attributing its antimicrobial and wound-healing effects to concentrated medical-grade honey, which a diluted extract in a cosmetic cream is not.
The remaining label ingredients are cosmetic in effect. Soluble collagen is a large protein that cannot penetrate intact skin and instead forms a surface film that binds water and gives a temporary smoothing sensation, which is the entire basis of any plumping claim. Chamomile flower extract carries bisabolol and flavonoids with mild anti-inflammatory activity at higher concentrations than a thirteenth-place listing implies, and it is also a recognised allergen for people sensitised to the Asteraceae family. The preservative iodopropynyl butylcarbamate has a documented, if modest, sensitisation rate; a 2019 study in Contact Dermatitis of consecutive patch-tested patients over seven years recorded positive reactions to it in a small percentage, which, together with the parfum and the rose extract, is the basis for cautioning eczema-prone and fragrance-sensitive users despite the otherwise barrier-friendly base.
References 4 ShowHide
- A review on the extensive skin benefits of mineral oil — International Journal of Cosmetic Science (2012)
- Restoring Skin Hydration and Barrier Function: Mechanistic Insights Into Basic Emollients for Xerosis Cutis — International Journal of Dermatology (2025)
- Honey therapies for dermatological disorders: more than just a sweet elixir — International Journal of Dermatology (2024)
- Patch test reactivity to iodopropynyl butylcarbamate in consecutive patients during a period of 7 years — Contact Dermatitis (2019)