The Best Black Friday Serum Deals 2026: The Ordinary, Good Molecules & More

The Ordinary Niacinamide 10% + Zinc 1% is a targeted serum designed for blemish-prone and congested skin. It combines a high concentration of Vitamin B3 with Zinc PCA to tackle excess oil, dullness, and visible pores, making it a go-to for anyone struggling with uneven texture or frequent breakouts.

In real-world use, this serum delivers noticeable improvements in skin radiance and smoothness within seven days. The lightweight, water-based formula feels refreshing and absorbs quickly, while the inclusion of Zinc helps calm active oiliness after just a few days. Over four weeks, pores look tighter and skin appears less congested, backed by clinical testing referenced by the brand.

The build quality is consistent with The Ordinary's minimalist approach: a simple dropper bottle that dispenses the right amount, and a clear, slightly viscous liquid that layers well under moisturizers or sunscreen. There are no unnecessary fragrances or oils, which is a plus for reactive skin types.

On the downside, the 10% niacinamide concentration is potent and can cause stinging or flushing for sensitive users. A patch test is strongly recommended, and it should never be applied to broken skin. Additionally, the 1 oz bottle may run out faster if you apply it to the whole face twice daily, though the low price makes repurchasing easy.

Overall, this is a high-performing, budget-friendly serum that delivers on its promises for most skin types. If your skin tolerates niacinamide well, it is a worthwhile addition to a daily routine for smoothing texture, controlling shine, and improving overall clarity.

Good Molecules Hyaluronic Acid Serum is a straightforward, no-fuss hydrating serum designed to deliver deep moisture to all skin types. It targets dryness, fine lines, and dullness by drawing water into the skin and keeping it there. This serum is perfect for anyone seeking a lightweight, fast-absorbing hydrator that won't feel heavy or greasy.

The standout feature is its water-based formula that absorbs almost instantly, leaving skin feeling plump and refreshed. Consistent use helps maintain hydration levels and supports a firmer appearance over time. The serum layers well under moisturizer and makeup, making it a versatile addition to any skincare routine.

Design-wise, the product comes in a simple, no-frills bottle with a dropper dispenser. The 1 fl oz size is compact and travel-friendly, but may require frequent repurchasing for daily use. The formula is fragrance-free, which is a plus for those with sensitive skin, but some users prefer a scented product.

One potential drawback is that the serum works best when applied to damp skin and followed by a moisturizer, which adds an extra step. Additionally, at the time of writing, there are no customer reviews, so long-term efficacy is based on the brand's reputation and ingredient transparency rather than real-world feedback.

Overall, Good Molecules Hyaluronic Acid Serum offers excellent value for its price. It delivers exactly what it promises: deep, lightweight hydration suitable for all skin types. If you prefer a simple, effective, and budget-friendly hydrating serum, this is a solid choice.

The Medicube PDRN Pink Peptide Serum is a cutting-edge skincare treatment that harnesses the power of salmon DNA and peptides to address aging skin concerns. This serum is designed for anyone looking to improve skin texture, elasticity, and overall radiance, particularly those dealing with fine lines, dullness, or loss of firmness. It works across all skin types and is especially beneficial for mature skin or those seeking preventative anti-aging care.

What sets this serum apart is its dual-action formula combining PDRN (polydeoxyribonucleotide) derived from salmon DNA with a peptide complex. These ingredients work synergistically to stimulate collagen production and cellular renewal at the molecular level. Users report visible improvements in skin plumpness and smoothness within 4-6 weeks of consistent application, making it a legitimate investment in your skincare routine.

The formula itself impresses with its lightweight, gel-like consistency that absorbs seamlessly into the skin without leaving any sticky or greasy residue. This makes it ideal for layering under moisturizers or other treatments. The serum feels luxurious during application while maintaining practicality for daily use, morning or night.

The main consideration is that this is not an instant-gratification product. Results require patience and consistent use over several weeks. Additionally, those committed to vegan skincare may want to explore alternatives, as the salmon DNA is a key active ingredient. Proper storage is also important to maintain the integrity of the formula.

Overall, the Medicube PDRN Pink Peptide Serum delivers professional-grade anti-aging benefits at an accessible price point. With its strong customer satisfaction ratings and scientifically-backed ingredients, it represents excellent value for anyone serious about addressing aging skin concerns naturally and effectively.

Apply 2-3 drops of serum to clean, dry skin after cleansing and toning. Gently pat the product into the face and neck using your fingertips, allowing it to fully absorb before applying moisturizer. For best results, use twice daily, morning and evening. The serum works well as the first step in your skincare routine after water-based products and before heavier creams or oils.

For optimal results, maintain consistent use for at least 4-6 weeks before expecting visible improvements. Store the bottle in a cool place or refrigerate after opening to preserve the potency of the active ingredients. A little goes a long way with this concentrated formula, so avoid using excessive amounts.

PDRN (Salmon DNA Extract) acts as a cellular regeneration catalyst, stimulating fibroblasts to produce more collagen and elastin. This ingredient is known for its wound-healing and skin-renewal properties, making it effective for restoring youthful texture and firmness.

Peptide Complex provides amino acids that support skin structure and elasticity. Peptides signal skin cells to produce more collagen, helping to reduce the appearance of fine lines and improve overall skin resilience.

Additional Supporting Ingredients include hydrating and soothing compounds that enhance absorption and reduce potential irritation, making this formula suitable for sensitive skin types.