DIME TBT Serum for skin with dark spots
Mandelic Acid
Niacinamide
Sodium Hyaluronate
Peptides
BakuchiolHigh
- SuperiorNormal Skin Fit
- HighEffectiveness
- HighSafety
A great choice for skin with dark spots; a few products fit it even better.
This fit is calculated for the concerns frequently associated with dark spots: hyperpigmentation, sun spots, and uneven skin tone. For scores and recommendations based on your full skin profile, including your 12D face scan results and any goals or preferences you have, please use the Lovi app.
Page built Nov 8, 2026How the Fit score works
Lovi Assistant explains
- Offers moderate benefits for pigmentation due to the presence of niacinamide and mandelic acid, which support skin brightening and gentle exfoliation for your normal skin.
- The serum is excellent for normal skin due to sodium hyaluronate and niacinamide providing humectant action and barrier repair, alongside numerous antioxidants like Vitis Vinifera Seed Extract and Resveratrol.
- The safety profile is excellent, with no risks of irritation for your normal skin due to the absence of prohibited or harsh ingredients.
How to apply
- Use your exfoliant PM once a week to start, moving up to twice a week if your skin likes it. Always apply SPF during the day while using this product.
- Apply this exfoliant step right after your cleanser and toner, and before your moisturizer.
- Gently press 2-3 drops of the exfoliant into your skin and let it dry. Avoid rubbing your face hard.
- Apply the product on clean, completely dry skin to make sure it works best for your pigmentation goals.
- Remember to avoid the delicate eye area and do a quick patch test before using it for the first time.
People Say
★4.8Overall rating based on 4.5k+ reviewsBased on a very large amount of data, users frequently praise the serum for its ability to smooth skin texture and provide a radiant glow, often noting improvements in fine lines and acne scarring over time. Reactions are mixed regarding hydration; while many find it lightweight and effective, a notable subset of users with sensitive or dry skin experienced irritation, breakouts, or a lack of sufficient moisture.
Highlights
Improved skin texture Mostly Mentioned
- “smoother skin”
- “softer feel”
- “reduced roughness”
Radiant complexion Often Mentioned
- “healthy glow”
- “brighter skin”
- “less dullness”
Clean formulation Sometimes Noted
- “gentle ingredients”
- “EWG verified”
- “vegan/cruelty-free”
Fades dark spots Sometimes Noted
- “reduced acne scars”
- “evened skin tone”
- “lighter hyperpigmentation”
Lightweight absorption Sometimes Noted
- “absorbs quickly”
- “non-greasy”
- “layers well”
Skin irritation Sometimes Noted
- “redness”
- “rashes”
- “breakouts”
- “itchiness”
Unpleasant texture Sometimes Noted
- “sticky finish”
- “tacky feel”
- “heavy residue”
Insufficient hydration Rarely Noted
- “drying effect”
- “not moisturizing enough”
- “requires extra cream”
Lack of results Rarely Noted
- “no visible change”
- “plateaued improvement”
- “ineffective for wrinkles”
Scent issues Rarely Noted
- “overpowering smell”
- “unpleasant odor”
Sources: lovi.care, dimebeautyco.com, amazon.com, ulta.com, reddit.com, gurlgonegreen.com, and more
Questions and answers
What makes DIME TBT Serum a great fit for skin with dark spots?
DIME TBT Serum is a great fit for skin with dark spots because it offers moderate brightening benefits through ingredients like niacinamide and mandelic acid that help fade dark spots and gently exfoliate. It also features sodium hyaluronate for deep moisture and many antioxidants like resveratrol to help protect and brighten normal skin safely without irritation.
Which ingredients make this serum a good fit for skin with dark spots?
Niacinamide and mandelic acid make this serum a good fit for dark spots by supporting skin brightening and gentle exfoliation. Niacinamide significantly decreases dark spots and increases skin lightness, while mandelic acid offers good tolerability for your skin.
What does Mandelic Acid do for skin with dark spots?
Mandelic acid helps fade dark spots and uneven skin tone while being generally gentle on the skin. It works by gently exfoliating the outer layer to reveal fresher, more even skin underneath. To properly treat dark spots, a product of this type needs additional brightening ingredients and soothing agents to calm the skin and improve pigment reduction.
What does Niacinamide do for skin with dark spots?
Niacinamide helps fade dark spots and uneven pigmentation by slowing down the transfer of pigment in the skin. It is generally well tolerated and may improve overall skin brightness with consistent use.
Where does this serum go in a skincare routine for skin with dark spots?
Apply this serum in your evening routine, using it once a week at first and slowly increasing frequency if your skin tolerates it well. It fits nicely into your routine after cleansing and toning, and right before your moisturizer.
Can I use this serum with retinol, and in what order?
You can use this serum with retinol, but it is best to apply them on alternate nights to keep your skin calm and smooth. Using exfoliating acids and retinol together may raise the likelihood of dryness or irritation.
How often should I use this serum?
Start using this serum once a week in your evening routine, and if your skin feels comfortable and you see good results, you can carefully use it more often. It is very safe and unlikely to cause irritation.
Can this serum clog pores, cause breakouts or purging for skin with dark spots?
This serum is unlikely to clog pores or cause breakouts for skin with dark spots. Its gentle formula relies on soothing antioxidants and mild exfoliating ingredients that help brighten dark spots without harsh effects.
Is this serum fragrance-free and alcohol-free?
Yes, it has no fragrance and no drying alcohol.
What the research says
Niacinamide significantly decreased hyperpigmentation and increased skin lightness compared with vehicle alone after 4 weeks of use in women by inhibiting melanosome transfer.
The British Journal of Dermatology, 2002Resveratrol nanoliposomes improved transdermal penetration and enhanced anti-aging and skin-brightening effects by promoting antioxidant capacity and collagen synthesis while inhibiting matrix metalloproteinases, tyrosinase activity, and melanin synthesis compared to free resveratrol.
Molecules, 2023Treatment with a combination of niacinamide and hyaluronic acid improved skin aging signs and demonstrated a senomorphic effect by decreasing SASP and autocrine signaling genes in women.
Scientific Reports, 2024Treatment with 45% mandelic acid peel showed nearly equal overall efficacy as 30% salicylic acid peel in patients with mild-to-moderate facial acne vulgaris, but with fewer adverse effects.
Journal of Cosmetic Dermatology, 2020Chemical peels using 35% glycolic acid, 20% salicylic-10% mandelic acid, and phytic acid reduce acne scores by 70.55%, 74.14%, and 69.7% respectively, and significantly decline the postacne hyperpigmentation index in Asian patients with mild to moderate acne.
Journal of Cutaneous and Aesthetic Surgery, 2019Commonly used chemical peels showed no significant differences in effectiveness for acne vulgaris in most comparisons, though combined salicylic and mandelic acid peeling was superior to glycolic acid and glycolic acid was superior to placebo, based on twelve randomized controlled trials.
BMJ Open, 2018Topical 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, 2021Topical 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, 2008Topical 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, 2005Topical 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, 2011Topical 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, 2022Treatment 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, 2019Topical bakuchiol 0.5% applied twice daily compared with retinol 0.5% applied daily significantly decreased wrinkle surface area and hyperpigmentation with no statistical difference between the compounds in 44 patients over 12 weeks, while retinol users reported more facial skin scaling and stinging.
The British Journal of Dermatology, 2019A dermocosmetic containing bakuchiol, Ginkgo biloba extract, and mannitol improves inflammatory lesions, Investigator Global Assessment, and seborrhea intensity when added to adapalene 0.1% gel in patients with acne vulgaris.
Clinical, Cosmetic and Investigational Dermatology, 2015Topical application of a serum containing supramolecular Bakuchiol and Terminalia chebula extract significantly improved barrier function, reduced redness and sensitivity, and improved wrinkles and elasticity in 34 Chinese subjects with sensitive skin after 28 days.
Health Science Reports, 2025
Ingredients
Water, Propanediol, Sodium Hyaluronate, Mandelic Acid, Niacinamide, Camellia Sinensis Extract, Vitis Vinifera Seed Extract Grape Seed Extract, Punica Granatum Seed Oil, Rosa Canina Seed Oil Rosehip Seed Oil, Helianthus Annuus Seed Oil Sunflower Seed Oil, Persea Gratissima Oil Avocado Oil, Sclerocarya Birrea Oil, Neem Oil, Moringa Oleifera Seed Oil, Phoenix Dactylifera Extract Date Palm Extract, Resveratrol, Bakuchiol, Nigella Sativa Seed Oil, Gynostemma Pentaphyllum, Lycium Barbarum Berry Extract, Phenoxyethanol, Ethylhexylglycerin, Palmitoyl Tripeptide-38, Palmitoyl Oligopeptide, Palmitoyl Tetrapeptide-7
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.
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Co-founder, Medical Director
Cosmetic chemist, cosmetologist, aesthetic products developer
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Co-founder, CEO and CTO
PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex
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Dr. Sofía Perea Pérez, MD, MSc
Medical Board
Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine
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Medical Board
Specialist dermatologist, MBBS, MD, IFAAD
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Medical Board
Cosmetic chemist, SCS, IFSCC member
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Medical Board, Medical Advisor
Dermatology MD
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Elina Nazarenko, MD
Medical Board
Dermatology and diagnostic consultant
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Victoria Derkova, MS
Medical Board
Cosmetic chemist, cosmetic development technologist
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