Best references and peer reviewed studies on moisturizers:
Blank IH. Factors which influence the water content of the stratum corneum. J Invest Dermatol. 1952;18(6):433-40.
Baumann, L. Ch.43 Moisturizers in Baumann’s Cosmetic Dermatology, 3rd edition ( McGraw Hill 2022)
Baumann L Chapters 7-31 in Cosmeceuticals and Cosmetic ingredients (McGraw Hill 2015)
Buraczewska I, Berne B, Lindberg M, Lodén M, Törmä H. Moisturizers change the mRNA expression of enzymes synthesizing skin barrier lipids. Arch Dermatol Res. 2009;301(8):587-94.
Ye L, Mauro TM, Dang E, Wang G, Hu LZ, Yu C, et al. Topical applications of an emollient reduce circulating pro-inflammatory cytokine levels in chronically aged humans: a pilot clinical study. J Eur Acad Dermatol Venereol. 2019;33(11):2197-2201.
Lowe AJ, Leung DYM, Tang MLK, Su JC, Allen KJ. The skin as a target for prevention of the atopic march. Ann Allergy Asthma Immunol. 2018;120(2):145-151.
Yang M, Zhou M, Song L. A review of fatty acids influencing skin condition. J Cosmet Dermatol. 2020;19(12):3199-3204.
Spruit D. The interference of some substances with the water vapour loss of human skin. Dermatologica. 1971;142(2):89-92.
Draelos Z. Moisturizers. In Atlas of Cosmetic Dermatology. Draelos Z, ed. New York, NY: Churchill Livingstone, 2000, p. 83.
Wehr RF, Krochmal L. Considerations in selecting a moisturizer. Cutis. 1987;39(6):512-5.
Kligman AM. Regression method for assessing the efficacy of moisturizers. Cosmet Toilet. 1978;93:27-35.
Morrison D. Petrolatum. In Dry Skin and Moisturizers. Loden M, Maibach H, eds. Boca Raton, FL: CRC Press, 2000, p. 251.
American Academy of Dermatology Invitational Symposium on Comedogenicity. J Am Acad Dermatol. 1989;20(2 Pt 1):272-7.
Schnuch A, Lessmann H, Geier J, Uter W. White petrolatum (Ph. Eur.) is virtually non-sensitizing. Analysis of IVDK data on 80 000 patients tested between 1992 and 2004 and short discussion of identification and designation of allergens. Contact Dermatitis. 2006;54(6):338-43.
Tam CC, Elston DM. Allergic contact dermatitis caused by white petrolatum on damaged skin. Dermatitis. 2006;17(4):201-3.
Ulrich G, Schmutz JL, Trechot P, Commun N, Barbaud A. Sensitization to petrolatum: an unusual cause of false-positive drug patch-tests. Allergy. 2004;59(9):1006-9.
Harris I, Hoppe U. Lanolins. In Loden M, Maibach H, eds. Dry Skin and Moisturizers. Loden M, Maibach H, eds. Boca Raton, FL: CRC Press, 2000, p. 259.
Proserpio G. Lanolides: emollients or moisturizers? Cosmet Toilet. 1978; 93:45-48.
Kligman AM. The myth of lanolin allergy. Contact Dermatitis. 1998;39(3):103-7.
Boonchai W, Iamtharachai P, Sunthonpalin P. Occupational allergic contact dermatitis from essential oils in aromatherapists. Contact Dermatitis. 2007;56(3):181-2.
Bleasel N, Tate B, Rademaker M. Allergic contact dermatitis following exposure to essential oils. Australas J Dermatol. 2002;43(3):211-3.
DiNardo JC. Is mineral oil comedogenic? J Cosmet Dermatol. 2005;4(1):2-3.
Blanken R, van Vilsteren MJ, Tupker RA, Coenraads PJ. Effect of mineral oil and linoleic-acid-containing emulsions on the skin vapour loss of sodium-lauryl-sulphate-induced irritant skin reactions. Contact Dermatitis. 1989;20(2):93-7.
Agero AL, Verallo-Rowell VM. A randomized double-blind controlled trial comparing extra virgin coconut oil with mineral oil as a moisturizer for mild to moderate xerosis. Dermatitis. 2004;15(3):109-16.
Tolbert PE. Oils and cancer. Cancer Causes Control. 1997;8(3):386-405.
Rawlings AV, Lombard KJ. A review on the extensive skin benefits of mineral oil. Int J Cosmet Sci. 2012;34(6):511-8.
Boucetta KQ, Charrouf Z, Aguenaou H, Derouiche A, Bensouda Y. Does Argan oil have a moisturizing effect on the skin of postmenopausal women? Skin Res Technol. 2013;19(3):356-7.
Darmstadt GL, Mao-Qiang M, Chi E, Saha SK, Ziboh VA, Black RE, et al. Impact of topical oils on the skin barrier: possible implications for neonatal health in developing countries. Acta Paediatr. 2002;91(5):546-54.
Darmstadt GL, Saha SK, Ahmed AS, Chowdhury MA, Law PA, Ahmed S, et al. Effect of topical treatment with skin barrier-enhancing emollients on nosocomial infections in preterm infants in Bangladesh: a randomised controlled trial. Lancet. 2005;365(9464):1039-45.
Berbis P, Hesse S, Privat Y. Essential fatty acids and the skin. Allerg Immunol (Paris). 1990;22(6):225-31.
Williams HC. Evening primrose oil for atopic dermatitis. BMJ. 2003;327(7428):1358-9.
Koca U, Süntar I, Akkol EK, Yilmazer D, Alper M. Wound repair potential of Olea europaea L. leaf extracts revealed by in vivo experimental models and comparative evaluation of the extracts’ antioxidant activity. J Med Food. 2011;14(1-2):140-6.
Aburjai T, Natsheh FM. Plants used in cosmetics. Phytother Res. 2003;17(9):987-1000.
de la Puerta R, Martínez Domínguez ME, Ruíz-Gutíerrez V, Flavill JA, Hoult JR. Effects of virgin olive oil phenolics on scavenging of reactive nitrogen species and upon nitrergic neurotransmission. Life Sci. 2001;69(10):1213-22.
Kränke B, Komericki P, Aberer W. Olive oil—contact sensitizer or irritant? Contact Dermatitis. 1997;36(1):5-10.
Danby SG, AlEnezi T, Sultan A, Lavender T, Chittock J, Brown K, et al. Effect of olive and sunflower seed oil on the adult skin barrier: implications for neonatal skin care. Pediatr Dermatol. 2013;30(1):42-50.
Weisberg EM, Baumann LS. The foundation for the use of olive oil in skin care and botanical cosmeceuticals. In Olives and Olive Oil in Health and Disease Prevention. Cambridge, MA: Academic Press, 2021 pp. 425-434.
Idson B. Dry skin: moisturizing and emolliency. Cosmet Toilet. 1992;107(7):69-78.
Mitsui T. Humectants. In New Cosmetic Science, Mitsui T, ed. New York, NY: Elsevier, 1997, p. 134.
Chernosky ME. Clinical aspects of dry skin. J Soc Cosmet Chem. 1976;27:365-76.
Choi EH, Man MQ, Wang F, Zhang X, Brown BE, Feingold KR, et al. Is endogenous glycerol a determinant of stratum corneum hydration in humans? J Invest Dermatol. 2005;125(2):288-93.
Orth D, Appa Y. Glycerine. a natural ingredient for moisturizing skin. In Dry Skin and Moisturizers. Loden M, Maibach H, eds. Boca Raton, FL: CRC Press, 2000, p. 217.
Orth D, Appa Y, Contard E, et al. Effect of High Glycerin Therapeutic Moisturizers on the Ultrastructure of the Stratum Corneum. Poster presentation at the 53rd Annual Meeting of the American Academy of Dermatology. New Orleans, LA. February, 1995:3-8.
Fluhr JW, Mao-Qiang M, Brown BE, Wertz PW, Crumrine D, Sundberg JP, et al. Glycerol regulates stratum corneum hydration in sebaceous gland deficient (asebia) mice. J Invest Dermatol. 2003;120(5):728-37.
Hara M, Ma T, Verkman AS. Selectively reduced glycerol in skin of aquaporin-3-deficient mice may account for impaired skin hydration, elasticity, and barrier recovery. J Biol Chem. 2002;277(48):46616-21.
Hara M, Verkman AS. Glycerol replacement corrects defective skin hydration, elasticity, and barrier function in aquaporin-3-deficient mice. Proc Natl Acad Sci U S A. 2003;100(12):7360-5.
Draelos ZD. Active agents in common skin care products. Plast Reconstr Surg. 2010;125(2):719-724.
Harding C, Bartolone J, Rawlings A. Effects of natural moisturizing factor and lactic acid isomers on skin function. In Dry Skin and Moisturizers. Loden M, Maibach H, eds. Boca Raton, FL: CRC Press, 2000, p. 236.
Kligman AM. Dermatologic uses of urea. Acta Derm Venereol. 1957;37(2):155-9.
Wohlrab W. The influence of urea on the penetration kinetics of topically applied corticosteroids. Acta Derm Venereol. 1984;64(3):233-8.
Wohlrab W. Effect of urea on the penetration kinetics of vitamin A acid into human skin. Z Hautkr. 1990;65(9):803-5.
Serup J. A double-blind comparison of two creams containing urea as the active ingredient. Assessment of efficacy and side-effects by non-invasive techniques and a clinical scoring scheme. Acta Derm Venereol Suppl (Stockh). 1992;177:34-43.
Celleno L. Topical urea in skincare: A review. Dermatol Ther. 2018;31(6):e12690.
Lawrence N, Brody HJ, Alt TH. Chemical peeling. In Cosmetic Surgery of the Skin, 2nd ed. Coleman W, Hanke W, eds. St. Louis, MO: CV Mosby, 1997, pp. 85-111.
Van Scott EJ, Yu RJ. Control of keratinization with alpha-hydroxy acids and related compounds. I. Topical treatment of ichthyotic disorders. Arch Dermatol. 1974;110(4):586-90.
Draelos ZD. Rediscovering the cutaneous benefits of salicylic acid. Cosm Derm. 1997;10(Suppl 4):4.
Van Scott EJ, Yu R. Hyperkeratinization, corneocyte cohesion, and alpha hydroxy acids. J Am Acad Dermatol. 1984;11(5 Pt 1):867-79.
Berardesca E, Distante F, Vignoli GP, Oresajo C, Green B. Alpha hydroxyacids modulate stratum corneum barrier function. Br J Dermatol. 1997;137(6):934-8.
Takahashi M, Machida Y, Tsuda Y. The influence of hydroxy acids on the rheological properties of the stratum corneum. J Soc Cosmet Chem. 1985;36(2):177-87.
Draelos ZD. Therapeutic moisturizers. Dermatol Clin. 2000;18(4):597-607.
Perricone NV, DiNardo JC. Photoprotective and antiinflammatory effects of topical glycolic acid. Dermatol Surg. 1996;22(5):435-7.
Kaidbey K, Sutherland B, Bennett P, Wamer WG, Barton C, Dennis D,et al. Topical glycolic acid enhances photodamage by ultraviolet light. Photodermatol Photoimmunol Photomed. 2003;19(1):21-7.
Tsai TF, Bowman PH, Jee SH, Maibach HI. Effects of glycolic acid on light-induced skin pigmentation in Asian and Caucasian subjects. J Am Acad Dermatol. 2000;43(2 Pt 1):238-43.
Stiller MJ, Bartolone J, Stern R, Smith S, Kollias N, Gillies R, et al. Topical 8% glycolic acid and 8% L-lactic acid creams for the treatment of photodamaged skin. A double-blind vehicle-controlled clinical trial. Arch Dermatol. 1996;132(6):631-6.
Stern EC. Topical application of lactic acid in the treatment and prevention of certain disorders of the skin. Urol Cutaneous Rev. 1943;50:106.
Rawlings AV, Davies A, Carlomusto M, Pillai S, Zhang K, Kosturko R, et al. Effect of lactic acid isomers on keratinocyte ceramide synthesis, stratum corneum lipid levels and stratum corneum barrier function. Arch Dermatol Res. 1996;288(7):383-90.
Yamamoto A, Serizawa S, Ito M, Sato Y. Stratum corneum lipid abnormalities in atopic dermatitis. Arch Dermatol Res. 1991;283(4):219-23.
Wertz PW, Miethke MC, Long SA, Strauss JS, Downing DT. The composition of the ceramides from human stratum corneum and from comedones. J Invest Dermatol. 1985;84(5):410-2.
Thueson DO, Chan EK, Oechsli LM, Hahn GS. The roles of pH and concentration in lactic acid-induced stimulation of epidermal turnover. Dermatol Surg. 1998;24(6):641-5.
Algiert-Zielińska B, Mucha P, Rotsztejn H. Lactic and lactobionic acids as typically moisturizing compounds. Int J Dermatol. 2019;58(3):374-379.
Hannuksela M. Glycols. In Dry Skin and Moisturizers. Loden M, Maibach H, eds. Boca Raton, FL: CRC Press, 2000, pp. 413-415.
Draelos Z. Moisturizers. In Atlas of Cosmetic Dermatology. Draelos Z, ed. New York, NY: Churchill Livingstone, 2000, p. 85.
Man MQ, Feingold KR, Elias PM. Exogenous lipids influence permeability barrier recovery in acetone-treated murine skin. Arch Dermatol. 1993;129(6):728-38.
Zettersten EM, Ghadially R, Feingold KR, Crumrine D, Elias PM. Optimal ratios of topical stratum corneum lipids improve barrier recovery in chronologically aged skin. J Am Acad Dermatol. 1997;37(3 Pt 1):403-8.
Ishida K, Takahashi A, Bito K, Draelos Z, Imokawa G. Treatment with Synthetic Pseudoceramide Improves Atopic Skin, Switching the Ceramide Profile to a Healthy Skin Phenotype. J Invest Dermatol. 2020;140(9):1762-1770.e8.
Park BD, Youm JK, Jeong SK, Choi EH, Ahn SK, Lee SH. The characterization of molecular organization of multilamellar emulsions containing pseudoceramide and type III synthetic ceramide. J Invest Dermatol. 2003;121(4):794-801.
Naik A, Pechtold LA, Potts RO, Guy RH. Mechanism of oleic acid-induced skin penetration enhancement in vivo in humans. J Control Release. 1995;37(3):299-306.
Jiang SJ, Zhou XJ. Examination of the mechanism of oleic acid-induced percutaneous penetration enhancement: an ultrastructural study. Biol Pharm Bull. 2003;26(1):66-8.
Ando H, Watabe H, Valencia JC, Yasumoto K, Furumura M, Funasaka Y, et al. Fatty acids regulate pigmentation via proteasomal degradation of tyrosinase: a new aspect of ubiquitin-proteasome function. J Biol Chem. 2004;279(15):15427-33.
Ando H, Ryu A, Hashimoto A, Oka M, Ichihashi M. Linoleic acid and alpha-linolenic acid lightens ultraviolet-induced hyperpigmentation of the skin. Arch Dermatol Res. 1998;290(7):375-81.
Rieger MM. Hyaluronic acid in cosmetics. A review of its chemistry and biochemistry. Cosmet Toilet. 1998;113(3):35-42.
Berkó S, Maroda M, Bodnár M, Erős G, Hartmann P, Szentner K, et al. Advantages of cross-linked versus linear hyaluronic acid for semisolid skin delivery systems. Eur Polymer J. 2013;49(9):2511-7.
Brown MB, Jones SA. Hyaluronic acid: a unique topical vehicle for the localized delivery of drugs to the skin. J Eur Acad Dermatol Venereol. 2005;19(3):308-18.
Simon Davis DA, Parish CR. Heparan sulfate: a ubiquitous glycosaminoglycan with multiple roles in immunity. Front Immunol. 2013;4:470.
Gallo RL, Bucay VW, Shamban AT, Lima-Maribona J, Lewis AB, Ditre CM, et al. The potential role of topically applied heparan sulfate in the treatment of photodamage. J Drugs Dermatol. 2015;14(7):669-74.
Pigatto P, Bigardi A, Caputo R, Angelini G, Foti C, Grandolfo M, et al. An evaluation of the allergic contact dermatitis potential of colloidal grain suspensions. Am J Contact Dermat. 1997;8(4):207-9.
Vié K, Cours-Darne S, Vienne MP, Boyer F, Fabre B, Dupuy P. Modulating effects of oatmeal extracts in the sodium lauryl sulfate skin irritancy model. Skin Pharmacol Appl Skin Physiol. 2002;15(2):120-4.
Thioune O, Ahodikpe D, Dieng M, Diop AB, Ngom S, Lo I. Inflammatory ointment from shea butter and hydro-alcoholic extract of Khaya senegalensis barks (Cailcederat). Dakar Med. 2002;45(2):113-6.
Lodén M, Andersson AC. Effect of topically applied lipids on surfactant-irritated skin. Br J Dermatol. 1996;134(2):215-20.
Denda M, Tsutsumi M, Inoue K, Crumrine D, Feingold KR, Elias PM. Potassium channel openers accelerate epidermal barrier recovery. Br J Dermatol. 2007;157(5):888-93.
Baldwin HE, Bhatia ND, Friedman A, Eng RM, Seite S. The Role of Cutaneous Microbiota Harmony in Maintaining a Functional Skin Barrier. J Drugs Dermatol. 2017;16(1):12-18.
Gonzalo MA, de Argila D, García JM, Alvarado MI. Allergic contact dermatitis to propylene glycol. Allergy. 1999 Jan;54(1):82-3.
Baumann LS, Spencer J. The effects of topical vitamin E on the cosmetic appearance of scars. Dermatol Surg. 1999;25(4):311-5.