# DIME TBT Serum for combination skin

**Lovi Fit: Average fit for combination skin.**
Combination Skin Fit: Superior · Effectiveness: Average · Safety: High.

Page: https://lovi.care/skincare/p/dime/tbt-serum/for/combination-skin

The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for the United States.

Brand: [DIME](https://lovi.care/skincare/brands/dime)
Category: [Exfoliants](https://lovi.care/skincare/best/exfoliators)

This fit is calculated for the concerns frequently associated with combination skin: an oily T-zone, enlarged pores, and dry cheeks. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

Works for combination skin; other products fit it better.

## Why this fit

- Offers moderate exfoliation for your combination skin due to mandelic acid, which helps smooth texture and is well-tolerated. Sodium hyaluronate and niacinamide provide hydration and some oil regulation, though they are not specialized enough to significantly address your oily shine concern.
- The formula is safe for your combination skin, as it lacks harsh ingredients that could cause irritation.
- The presence of multiple botanical extracts and peptides offers general skincare benefits, contributing to overall skin health.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/p/dime/tbt-serum/for/oily-skin): Average
- [Dry skin](https://lovi.care/skincare/p/dime/tbt-serum/for/dry-skin): High
- [Combination skin](https://lovi.care/skincare/p/dime/tbt-serum/for/combination-skin): Average (this page)
- [Sensitive skin](https://lovi.care/skincare/p/dime/tbt-serum/for/sensitive-skin): High
- [Acne-prone skin](https://lovi.care/skincare/p/dime/tbt-serum/for/acne-prone-skin): High
- [Skin with dark spots](https://lovi.care/skincare/p/dime/tbt-serum/for/dark-spots): High
- [Mature skin](https://lovi.care/skincare/p/dime/tbt-serum/for/mature-skin): Average
- [Dry sensitive skin](https://lovi.care/skincare/p/dime/tbt-serum/for/dry-sensitive-skin): High
- [Oily acne-prone skin](https://lovi.care/skincare/p/dime/tbt-serum/for/oily-acne-prone-skin): Average

## Key ingredients

Mandelic Acid, Niacinamide, Sodium Hyaluronate, Peptides, Bakuchiol

## What the research says

- Treatment 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, 2020](https://pubmed.ncbi.nlm.nih.gov/31553119/))
- Chemical 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, 2019](https://pubmed.ncbi.nlm.nih.gov/31619887/))
- Commonly 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, 2018](https://pubmed.ncbi.nlm.nih.gov/29705755/))
- 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](https://pubmed.ncbi.nlm.nih.gov/33103316/))
- 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](https://pubmed.ncbi.nlm.nih.gov/17882270/))
- 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](https://pubmed.ncbi.nlm.nih.gov/16029679/))
- 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](https://pubmed.ncbi.nlm.nih.gov/22052267/))
- 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](https://pubmed.ncbi.nlm.nih.gov/34623507/))
- 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](https://pubmed.ncbi.nlm.nih.gov/31311529/))
- Topical 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, 2019](https://pubmed.ncbi.nlm.nih.gov/29947134/))
- A 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, 2015](https://pubmed.ncbi.nlm.nih.gov/25914553/))
- Topical 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](https://pubmed.ncbi.nlm.nih.gov/41424674/))

## Why other products fit combination skin better

- Niacinamide and ferulic acid incorporated in a stable multiple emulsion successfully reduced melanin, sebum, and skin erythema while improving skin elasticity and hydration in human skin compared to a placebo. ([BioMed Research International, 2022](https://pubmed.ncbi.nlm.nih.gov/35342760/))
- A panthenol-enriched mask improved skin hydration, regulated sebum, and reduced redness and TEWL across dry sensitive, oily sensitive, and oily acne skin subgroups with excellent tolerance and no adverse reactions. ([Journal of Cosmetic Dermatology, 2024](https://pubmed.ncbi.nlm.nih.gov/38366684/))

## What reviewers say

Based 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.

- Liked: Improved skin texture (mostly mentioned)
- Liked: Radiant complexion (often mentioned)
- Liked: Clean formulation (sometimes noted)
- Liked: Fades dark spots (sometimes noted)
- Liked: Lightweight absorption (sometimes noted)
- Disliked: Skin irritation (sometimes noted)
- Disliked: Unpleasant texture (sometimes noted)
- Disliked: Insufficient hydration (rarely noted)
- Disliked: Lack of results (rarely noted)
- Disliked: Scent issues (rarely noted)

## How to apply

- Use this exfoliant product in your PM routine starting once a week, then increase frequency carefully if your skin feels fine.
- Apply this exfoliant step after cleansing and toner, but right before your moisturizer.
- Gently press 2-3 drops of the exfoliant into your skin and wait a minute before layering.
- Apply the exfoliant to clean, dry skin to help control your oily shine comfortably.
- Avoid the eye area and do a patch test before your first use.
- Video: https://storage.pora.ai/028e5e793422a3b665c02ff502cf5a68.mp4

## Questions and answers

### How well does DIME TBT Serum work for combination skin?

DIME TBT Serum works reasonably well for combination skin by smoothing texture with mandelic acid and offering general hydration, but it may not fully control oily shine. An exfoliant treatment for this skin needs high concentrations of ingredients like niacinamide, zinc PCA, or propolis to regulate oiliness and balance hydration without causing irritation.
Sources: [Journal of Cosmetic Dermatology, 2020](https://pubmed.ncbi.nlm.nih.gov/31553119/)

### Which ingredients make this exfoliant a good fit for combination skin?

Mandelic acid makes this exfoliant a good fit by offering moderate smoothing for combination skin, while sodium hyaluronate and niacinamide provide hydration and some oil balance. An exfoliant for this skin needs effective ingredients like niacinamide and propolis or zinc PCA that provide excellent skincare benefits, enhance radiance, and regulate oiliness without causing irritation or unsuitability.
Sources: [Journal of Cosmetic Dermatology, 2020](https://pubmed.ncbi.nlm.nih.gov/31553119/)

### What does Mandelic Acid do for combination skin?

Mandelic acid helps clear breakouts and fade dark spots in combination skin while being gentle enough to cause fewer side effects than other acids. It may also improve overall skin texture and tone without causing excessive irritation.
Sources: [Journal of Cosmetic Dermatology, 2020](https://pubmed.ncbi.nlm.nih.gov/31553119/), [Dermatologic Surgery, 2009](https://pubmed.ncbi.nlm.nih.gov/19076192/)

### What does Niacinamide do for combination skin?

Niacinamide helps balance oily areas by reducing excess shine and pore size while keeping dry patches hydrated and smooth. It also works to calm redness and even out skin tone, making it very suitable for combination skin.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/), [Antioxidants, 2021](https://pubmed.ncbi.nlm.nih.gov/34439563/)

### Where does it go in a skincare routine for combination skin?

Use this treatment in the evening as a step in your nighttime routine. For combination skin, an exfoliant treatment like this needs ingredients like mandelic acid for texture and stronger oil-balancing ingredients to fully manage oily shine.

### Can I use this exfoliant with retinol, and in what order?

You should use this exfoliant and retinol on different nights rather than together to keep your skin calm and lower the risk of irritation. Combination skin needs products with targeted oil-balancing and deep pore-clearing ingredients like salicylic acid or clay to better manage oily shine alongside gentle exfoliation.

### How often should I use it?

You can start using DIME TBT Serum once a week in your evening routine, and carefully use it more often if your combination skin tolerates it well and shows good results. An average fit for your skin type needs stronger oil-balancing ingredients along with gentle exfoliation and hydration to truly tackle oily shine.

### Can it clog pores, cause breakouts or purging for combination skin?

DIME TBT Serum is unlikely to clog pores or cause breakouts on combination skin, as it contains gentle mandelic acid that helps smooth texture with fewer adverse effects. However, because it is an exfoliant treatment, you might experience mild irritation while your skin adjusts. A product for combination skin this type needs specialized oil-regulating ingredients and lightweight hydrators to properly balance oily shine.
Sources: [Journal of Cosmetic Dermatology, 2020](https://pubmed.ncbi.nlm.nih.gov/31553119/)

### Is this exfoliant fragrance-free and alcohol-free?

Yes, it has no fragrance and no drying alcohol.

## Alternatives for combination skin

- [Beauty of Joseon Propolis + Niacinamide Glow Serum](https://lovi.care/skincare/p/beauty-of-joseon/propolis-niacinamide-glow-serum/for/combination-skin) — Superior fit — $16.75 at Amazon
- [Neogen Dermalogy Real Niacinamide 15% Firming Serum](https://lovi.care/skincare/p/neogen-dermalogy/real-niacinamide-15-firming-serum/for/combination-skin) — Superior fit — $28.88 at Amazon
- [Augustinus Bader The Serum](https://lovi.care/skincare/p/augustinus-bader/the-serum/for/combination-skin) — Superior fit — $200.00 at Amazon

## Pairs well with

- Cleanser: [Fresh Soy Face Cleanser](https://lovi.care/skincare/p/fresh/soy-face-cleanser/for/combination-skin) — Superior fit — $28.08 at Amazon
- Hydrating Toner: [Paula's Choice Pore-Reducing Toner](https://lovi.care/skincare/p/paula-s-choice/skin-balancing-pore-reducing-toner/for/combination-skin) — Superior fit — $25.60 at Amazon
- Moisturizer: [COSRX Oil-Free Ultra-Moisturizing Lotion with Birch Sap](https://lovi.care/skincare/p/cosrx/oil-free-ultra-moisturizing-lotion-with-birch-sap/for/combination-skin) — Superior fit — $18.99 at Amazon

## Where to buy

No store in United States has a checked price for this product, so the page shows none.

## 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
## About the Lovi Fit

Lovi: Unbiased, science-based skincare AI trained on real user outcomes.

Lovi calculates every fit score from the full ingredient list with brand-independent rules its 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. Levels from best to worst: Superior, High, Average, Low, Caution, Warning.

Behind this fit score: Nadia Kapleva, MS (Co-founder, Medical Director); Alexey Shagraev, PhD (Co-founder, CEO and CTO); Dr. Sofía Perea Pérez, MD, MSc (Medical Board); Aishani Shah, MD (Medical Board); Asya Zubkova, MS (Medical Board); Hanna Kurets, MD (Medical Board, Medical Advisor); Elina Nazarenko, MD (Medical Board); Victoria Derkova, MS (Medical Board).

Page built Nov 8, 2026.

More from Lovi: https://lovi.care/skincare/llms.txt

## This page in other countries

- United States: https://lovi.care/skincare/p/dime/tbt-serum/for/combination-skin (this page)
- United Kingdom: https://lovi.care/skincare/uk/p/dime/tbt-serum/for/combination-skin
- Ireland: https://lovi.care/skincare/ie/p/dime/tbt-serum/for/combination-skin
- Germany: https://lovi.care/skincare/de/p/dime/tbt-serum/for/combination-skin
- France: https://lovi.care/skincare/fr/p/dime/tbt-serum/for/combination-skin
- Italy: https://lovi.care/skincare/it/p/dime/tbt-serum/for/combination-skin
- Netherlands: https://lovi.care/skincare/nl/p/dime/tbt-serum/for/combination-skin
- Spain: https://lovi.care/skincare/es/p/dime/tbt-serum/for/combination-skin
- Canada: https://lovi.care/skincare/ca/p/dime/tbt-serum/for/combination-skin
- Australia: https://lovi.care/skincare/au/p/dime/tbt-serum/for/combination-skin
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- Saudi Arabia: https://lovi.care/skincare/sa/p/dime/tbt-serum/for/combination-skin
- United Arab Emirates: https://lovi.care/skincare/ae/p/dime/tbt-serum/for/combination-skin