Dr. Althea Vitamin C Boosting Serum for skin with dark spots

How to apply

Questions and answers

What the research says

• L-ascorbic acid and betaine-based therapeutic deep eutectic system significantly enhanced transdermal delivery through porcine skin compared to ascorbic acid alone or physical mixture, and reduced aging markers while inducing an even skin tone in humans.

  Pharmaceutics, 2024

• Topical dexpanthenol acts as a moisturizer, improves stratum corneum hydration, accelerates wound healing and epidermal regeneration, reduces erythema, and improves symptoms of skin irritation compared to vehicle or no pretreatment.

  American Journal of Clinical Dermatology, 2002

• A new topical panthenol-containing emollient significantly improved transepidermal water loss reduction, stratum corneum hydration, and intercellular lipid lamellae length compared with control in healthy subjects without negatively impacting bacterial viability.

  The Journal of Dermatological Treatment, 2017

• A panthenol-enriched mask significantly decreased erythema and hyperpigmentation, increased sebum and stratum corneum moisture, and reduced transepidermal water loss compared to a saline dressing in 60 subjects undergoing facial laser treatment.

  Journal of Cosmetic Dermatology, 2025

• A multi-component dissolving microneedle patch loaded with glabridin, 3-O-ethyl-L-ascorbic acid, and tranexamic acid effectively reduced chloasma and age spots while demonstrating safety in clinical evaluation, alongside significant antioxidant, anti-tyrosinase, and melanin-reduction effects in vitro and in vivo.

  Polymers, 2023

• Topical application of 5% vitamin C cream significantly improved global clinical scores, increased skin microrelief density, and induced elastic tissue repair in photoaged skin compared to excipient control in healthy female volunteers.

  Experimental Dermatology, 2003

• Ascorbic acid 2-glucoside gel significantly reduced gingival melanin pigmentation after 4 weeks compared to placebo in 73 subjects with symmetric pigmentation.

  Journal of Periodontology, 2009

• Topical application of VC-IP cream twice daily for 8 weeks reduces periorbital wrinkles in female subjects compared to a placebo cream.

  Journal of Cosmetic Dermatology, 2022

• Topical application of a sea buckthorn fruit extract formulation significantly reduced skin sebum secretion in 10 healthy human volunteers compared to the control base over an 8-week period.

  Journal of Pharmacy & Bioallied Sciences, 2010

• Topical emulsions containing Hippophae rhamnoides and Cassia fistula plant extracts significantly reduced skin sebum contents compared to placebo in patients with grade I and grade II acne vulgaris.

  Postepy Dermatologii I Alergologii, 2014

• Topical application of a 5% Hippophae rhamnoides oil-in-water emulsion significantly improved skin hydration (p=0.0003) and transepidermal water loss (p=0.0087) compared to a placebo base formulation in 13 healthy male subjects over 84 days.

  Pakistan Journal of Pharmaceutical Sciences, 2014

• Topical post-laser application of human adipocyte-derived mesenchymal stem cell media combined with niacinamide significantly improved wrinkle index, melanin index, patient satisfaction, and investigator esthetic improvement scores compared to vehicle cream in patients with aging skin.

  Journal of Cosmetic Dermatology, 2021

• Topical nicotinamide prevented solar-simulated UV-induced immunosuppression in healthy volunteers, and men experienced immunosuppression at solar-simulated UV doses three times lower than those required for women.

  The Journal of Investigative Dermatology, 2008

• Topical 5% niacinamide applied twice daily for 12 weeks reduced fine lines and wrinkles, hyperpigmented spots, red blotchiness, and skin sallowness, and improved skin elasticity compared to vehicle control in 50 female white subjects with facial photoaging.

  Dermatologic Surgery, 2005

• Moisturizer containing 5% panthenol, madecassoside, and copper-zinc-manganese decreased adverse reactions and downtime after ablative fractional carbon dioxide laser resurfacing with comparable efficacy to 0.02% triamcinolone acetonide cream in 20 subjects.

  Journal of Cosmetic Dermatology, 2019

• Topical dexpanthenol formulated in lipophilic vehicles improved stratum corneum hydration and reduced transepidermal water loss compared to vehicle control in humans.

  Arzneimittel-Forschung, 2000

• Hyaluronic acid, hyaluronic acid plus dexpanthenol, and isotonic saline nasal sprays all significantly improved dry nose symptoms over four weeks in 240 patients, with hyaluronic acid plus dexpanthenol providing superior nasal moisturisation compared to the other two.

  Auris, Nasus, Larynx, 2020

• Topical application of 0.1% hyaluronic acid formulations of different molecular weights led to significant improvements in skin hydration and elasticity, with low-molecular-weight formulations also significantly reducing wrinkle depth in seventy-six female subjects compared to a vehicle control.

  Journal of Drugs in Dermatology, 2011

• Topical application of hyaluronic acid in conjunction with free gingival graft significantly reduced donor site postoperative pain until day 7 compared to normal saline, with no significant differences in graft dimensions or patient satisfaction.

  Clinical Oral Investigations, 2022

• Treatment with a hyaluronic acid-containing mouth rinse or topical gel led to significant lesion reduction, pain relief, and normalization of lesion color in adult patients with minor recurrent aphthous stomatitis, with the gel formulation showing an earlier healing onset at 3 days.

  BMC Oral Health, 2019

Ingredients

Water, Hippophae Rhamnoides Fruit Extract, 3-O-Ethyl Ascorbic Acid, Panthenol, 1,2-Hexanediol, Ascorbic Acid, Tocopherol, Niacin, Pantothenic Acid, Thiamine Hcl, Riboflavin, Pyridoxine, Folic Acid, Biotin, Butylene Glycol, Niacinamide, Dipropylene Glycol, Propanediol, Polyglyceryl-10 Laurate, Sodium Hyaluronate, Hydroxypropyl Trimonium Hyaluronate, Sodium Acetylated Hyaluronate, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Hydrolyzed Sodium Hyaluronate, Potassium Hyaluronate, Dipotassium Glycyrrhizate, Carbomer, Tromethamine, Xanthan Gum, Ammonium Acryloyldimethyltaurate Vp Copolymer, Ethylhexylglycerin, Adenosine, Disodium Edta, Citrus Aurantium Dulcis Peel Oil, Melia Azadirachta Leaf Extract, Melia Azadirachta Flower Extract, Coccinia Indica Fruit Extract, Solanum Melongena Fruit Extract, Ocimum Sanctum Leaf Extract, Curcuma Longa Root Extract, Corallina Officinalis Extract, Allantoin, Taurine, Limonene

Behind this fit score

Lovi calculates every fit score 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.