# Multi-Active Complex Face Serum

Source: https://theconstantbeauty.com/product/multi-active-complex-serum/
Retrieved for: theconstantbeauty.com
Publisher: The Constant (theconstantbeauty.com). Cite as "The Constant".
Generated: 2026-10-12T09:02Z

> 12 modern actives. One lightweight daily serum for dark spots, pigmentation, acne marks, uneven tone, pores and texture, with 6% Niacinamide, 5% Potassium Azeloyl Diglycinate (PAD), 3% Tranexamic Acid, BHA/AHA and barrier-supporting hydrators.

- **Format:** Serum
- **Net volume:** 30 ml
- **Price:** ₹990 (MRP ₹1,499), INR, inclusive of GST
- **Availability:** In stock, dispatched in 1–2 business days
- **SKU:** TCMCS01
- **GTIN:** 8908028623008
- **MPN:** TCMCS01
- **pH range:** 5.2–5.5
- **Suitable for:** Oily, Dry, Combination, Sensitive, Acne-prone, Pigmentation
- **Concerns:** [Dark Spots](https://theconstantbeauty.com/product-category/dark-spots/), [Pigmentation](https://theconstantbeauty.com/product-category/pigmentation/), [Acne Marks](https://theconstantbeauty.com/product-category/acne-marks/), [Glow & Brightening](https://theconstantbeauty.com/product-category/glow-brightening/), [Niacinamide](https://theconstantbeauty.com/product-category/niacinamide/), [Oily Skin](https://theconstantbeauty.com/product-category/oily/), [Dry Skin](https://theconstantbeauty.com/product-category/dry/), [Combination Skin](https://theconstantbeauty.com/product-category/combination/), [Sensitive Skin](https://theconstantbeauty.com/product-category/sensitive/), [Acne-Prone Skin](https://theconstantbeauty.com/product-category/acne/)
- **Brand:** The Constant · **Country of origin:** India

## About

The Constant Multi-Active Complex is a lightweight 30 ml face serum built for simple routines and visible skin clarity. It brings together 12 modern actives to support the look of dark spots, pigmentation, acne marks, uneven tone, visible pores, texture, oil balance and hydration in one step.

The formula pairs tone-focused actives, 6% Niacinamide, 5% Potassium Azeloyl Diglycinate and 3% Tranexamic Acid, with pore and texture support from 1% Zinc PCA, 1% Lactic Acid and 0.8% Encapsulated Salicylic Acid. A comfort matrix of 2% Centella Asiatica Extract, Sodium PCA, Betaine, 0.5% Panthenol, 0.5% Sodium Hyaluronate and 0.3% Saccharide Isomerate helps keep active-treated skin feeling hydrated and balanced.

Use after cleansing, before moisturiser and/or makeup.

## Formula

**Hero ingredient:** Niacinamide 6% — A multi-pathway active complex for marks, tone, pores, texture and hydration. Niacinamide, Tranexamic Acid and Potassium Azeloyl Diglycinate support a more even-looking tone; Zinc PCA, Lactic Acid and Encapsulated Salicylic Acid support pore and texture care; Centella, Panthenol, Sodium PCA, Betaine, Sodium Hyaluronate and Saccharide Isomerate support comfort and hydration.

**Active complex:**

- Niacinamide — 6.0%
- Potassium Azeloyl Diglycinate (PAD) — 5.0%
- Tranexamic Acid — 3.0%
- Centella Asiatica Extract — 2.0%
- Encapsulated Salicylic Acid — 0.8%
- Panthenol — 0.5%
- Sodium Hyaluronate (Hyaluronic Acid) — 0.5%
- Saccharide Isomerate — 0.3%

## Benefits and claims

_Claims supported by ingredient literature and supplier data (not finished-product trials)_

- Helps visibly improve the look of dark spots and post-breakout marks — Ingredient literature: niacinamide review, multiple studies <https://pmc.ncbi.nlm.nih.gov/articles/PMC11047333/>
- Supports a brighter, more even-looking skin tone — Ingredient literature: tranexamic acid systematic review, 21 trials <https://pmc.ncbi.nlm.nih.gov/articles/PMC6247725/>
- Helps refine the look of pores, shine and uneven texture — Ingredient literature: AHA / lactic acid exfoliation review <https://pmc.ncbi.nlm.nih.gov/articles/PMC11055559/>
- Hydrates and supports comfort for active-treated skin — Ingredient literature: Centella asiatica review <https://pmc.ncbi.nlm.nih.gov/articles/PMC9966672/>

## Evidence

| Study type | Endpoint | Sample | Duration | Result | Source |
| --- | --- | --- | --- | --- | --- |
| literature | Niacinamide mechanisms: tone, spots, sebum, barrier support | Multiple studies reviewed; not product-specific | Varies by cited study | Supports niacinamide as a multi-functional cosmetic active for hyperpigmentation appearance, sebum appearance and barrier-related endpoints. | https://pmc.ncbi.nlm.nih.gov/articles/PMC11047333/ |
| literature | Tranexamic acid and pigmentation-related endpoints | 21 eligible trials in the review | Varies by trial | Supports tranexamic acid as a pigmentation-focused active in the literature; ingredient-level support, not finished-product proof. | https://pmc.ncbi.nlm.nih.gov/articles/PMC6247725/ |
| literature | Tranexamic acid + Potassium Azeloyl Diglycinate for pigmentation appearance | Study-specific | Varies | Supports the rationale for combining TXA and PAD in tone-focused formulations. | https://pmc.ncbi.nlm.nih.gov/articles/PMC3969619/ |
| literature | Lactic acid / AHA exfoliation, texture and radiance | Not product-specific | Varies | Supports lactic acid as an AHA for surface renewal, texture and luminosity; use with sunscreen guidance. | https://pmc.ncbi.nlm.nih.gov/articles/PMC11055559/ |
| literature | Centella Asiatica skin comfort and repair-related mechanisms | Preclinical and clinical literature reviewed | Varies | Supports Centella-related rationale for soothing and skin comfort positioning. | https://pmc.ncbi.nlm.nih.gov/articles/PMC9966672/ |
| in-house | Early user experience: texture, comfort, visible marks/tone feedback | n=10 plus early customer feedback | Uncontrolled; duration varies | Early in-house user feedback. |  |

## How to use

1. Cleanse and pat skin dry. (AM or PM)
2. Apply 2–3 drops to face, avoiding the eye area and broken skin. (Start 3–4 nights/week if new to actives; increase as tolerated)
3. Follow with a simple moisturiser. (Every use)
4. Use broad-spectrum sunscreen in the morning. (Daily AM)
5. Avoid using with strong exfoliating acids, retinoids or benzoyl peroxide in the same routine until your skin builds tolerance. (Ongoing caution)

## Why modern over legacy

**Potassium Azeloyl Diglycinate (PAD)** (modern) in place of **Traditional azelaic acid-led serum or single-active brightening routine** (legacy), compared on efficacy, tolerability, delivery, sensory.

Potassium Azeloyl Diglycinate (PAD) is a water-soluble azelaic acid derivative, which can make it easier to build into a lightweight daily serum. In this formula, it is paired with Niacinamide, Tranexamic Acid, Zinc PCA, Lactic Acid, Encapsulated Salicylic Acid and hydrators, so the product supports tone, marks, pores, texture and comfort without asking the user to layer multiple separate serums.

## Full INCI (descending concentration)

Aqua, Niacinamide, Potassium Azeloyl Diglycinate, Tranexamic Acid, Sodium PCA, Centella Asiatica Extract, Betaine, Sodium Polyacryloyldimethyl Taurate, Zinc PCA, Lactic Acid, Encapsulated Salicylic Acid, Benzyl Alcohol, Dehydroacetic Acid, Panthenol, Sodium Hyaluronate, Triethanolamine, Saccharide Isomerate, Citric Acid, Sodium Citrate, Disodium EDTA

## Frequently asked questions

**Is this a niacinamide serum?**

Yes. It contains 6% Niacinamide, but it is not just a niacinamide serum. It combines 12 modern actives for marks, tone, pores, texture, oil balance and hydration.

**Can it help with dark spots and pigmentation?**

It is designed to support a more even-looking tone and the appearance of dark spots with Niacinamide, Tranexamic Acid and Potassium Azeloyl Diglycinate. Consistent use and daily sunscreen are important.

**Can it help with acne marks or pimple marks?**

It can help improve the look of post-breakout marks over time. It is not meant for deep pitted scars or medical acne treatment.

**Is it for oily or combination skin?**

Yes. The formula is lightweight and includes Zinc PCA, Niacinamide and Encapsulated Salicylic Acid, making it suitable for oily, combination and breakout-prone skin routines.

**Can sensitive skin use it?**

Sensitive skin should start slowly, patch-test first and use it 2–3 times a week before increasing. Stop use if irritation persists.

**Can I use it every day?**

Most users can build up to daily use if tolerated. If you are new to actives, start 3–4 nights per week.

**Can I use it in the morning?**

Yes, if your skin tolerates it. Always finish with sunscreen in the morning because the formula contains exfoliating acids.

**Can I use it with vitamin C?**

Yes, but introduce slowly. If your vitamin C is strong or acidic, use one in the morning and the other at night to reduce irritation risk.

**Can I use it with retinol?**

Use on alternate nights at first. Avoid combining in the same routine until your skin is comfortable with both.

**Can I use it with salicylic acid or AHA products?**

Avoid layering with separate exfoliating acid products initially, because this serum already contains Lactic Acid and Encapsulated Salicylic Acid.

**How long does it take to see results?**

Some users may notice smoother, fresher-looking skin earlier. Marks and uneven tone usually need consistent use for several weeks, plus daily sunscreen. Results vary.

## Disclaimers

For external use only. Patch-test before first use. Avoid direct contact with eyes and broken or irritated skin. If persistent irritation, burning, swelling or rash occurs, stop use and consult a qualified professional. Results vary by skin type, routine, consistency, sunscreen use and concern severity. Because this formula contains exfoliating acids, use broad-spectrum sunscreen during the day. New active users should start slowly and avoid layering with strong exfoliating acids, retinoids or benzoyl peroxide in the same routine until tolerance is built.

## Buying facts

- Complimentary shipping on orders above ₹1,499. A flat ₹49 applies below that. Shipping on a single unit: ₹49.
- Returns: 3-day window for unopened or damaged-on-arrival products. Opened skincare cannot be returned.
- Ships within India only. Prices in INR, inclusive of GST.

## From the Dossier

- [Potassium Azeloyl Diglycinate vs. Azelaic Acid: The Gentle, Hydrating Brightener](https://theconstantbeauty.com/dossier/potassium-azeloyl-diglycinate-vs-azelaic-acid/)
- [What Indian Skin Actually Needs: A Comprehensive Routine-Building Guide](https://theconstantbeauty.com/dossier/what-indian-skin-actually-needs-routine-building-guide/)
- [The Hidden Irritants: Why Skip Fragrance, Alcohol, and Dyes?](https://theconstantbeauty.com/dossier/the-hidden-irritants-why-skip-fragrance-alcohol-and-dyes/)

## Customer questions this product answers

- What is the best serum for dark spots in India?
- How do I fade post-acne marks / pimple marks?
- What is the best serum for pigmentation in India 2026?
- Which niacinamide serum works for Indian skin?
- Is mandelic acid better than glycolic acid for sensitive skin?
- How to fade kale daag (dark spots)?
- What is the best brightening serum for dull skin?
- Which serum is safe for acne-prone skin?
- What helps with uneven skin tone in India?
- Is this serum suitable before a wedding / bridal use?
- How to layer serum with sunscreen?
- How long until I see results from a brightening serum?
- Can I use this serum with retinol?

_Updated: 2026-09-16T17:44:42+00:00_