Collagen Booster

Yes, The INKEY List Collagen Booster is considered safe for use during pregnancy and breastfeeding. It contains no retinoids, salicylic acid, hydroquinone, or other ingredients typically avoided during pregnancy. The formula relies on peptides (Matrixyl 3000, Syn-Tacks) and hyaluronic acid, all of which are considered safe for topical use during pregnancy. Space NK specifically lists this product as "safe for use when pregnant or breastfeeding."

No, this product is NOT fungal acne safe. It contains Polysorbate 20 and palmitoyl peptides (which contain palmitic acid), both of which can potentially feed malassezia yeast. Additionally, it contains Leuconostoc/Radish Root Ferment Filtrate, which may be a concern for those with fungal acne sensitivities. If you have fungal acne or pityrosporum folliculitis, consider fungal acne-safe alternatives.

Yes, peptides generally play well with most other actives. The INKEY List states this product "layers well with all actives, AM or PM" and specifically works well with Retinol, Bakuchiol, Hyaluronic Acid, Q10, and their Hepta Peptide. However, for optimal peptide efficacy, avoid using direct acids (like glycolic or salicylic) in the same routine as low pH can reduce peptide benefits. Use acids in your PM routine and peptides in your AM routine, or alternate days.

This serum is suitable for all skin types including normal, dry, oily, combination, and sensitive skin. Its lightweight, watery texture makes it particularly excellent for oily and combination skin as it absorbs quickly without adding shine. For dry skin, it provides good hydration but should be followed with a richer moisturizer. Sensitive skin types benefit from its fragrance-free, gentle formula. The only exception is fungal acne-prone skin, which should avoid this product.

According to the brand, visible results can be expected in up to 6 weeks with consistent use. You'll notice immediate hydration benefits, with smoother skin texture appearing within 1-2 weeks. Firmness improvements typically begin around weeks 3-4. Peptides work on accumulation, meaning the longer you use them, the better the results. For optimal anti-aging benefits, continue use for 2-3 months. Be consistent and use AM and PM - but don't overuse, as more isn't necessarily better.

Apply this serum after cleansing and toning, following the thinnest-to-thickest rule. The recommended order is: 1) Cleanser, 2) Toner, 3) Hyaluronic Acid Serum (if using), 4) Collagen Booster, 5) Other serums/treatments, 6) Eye cream, 7) Moisturizer, 8) SPF (AM only). Apply to slightly damp skin for best absorption. Wait about 30-60 seconds between products to avoid pilling.

No, this product has a low comedogenic rating of approximately 1 out of 5. The formula is oil-free and contains no heavy pore-clogging ingredients. Key ingredients like glycerin (comedogenic rating 0), hyaluronic acid (rating 0), and the peptide complexes are all considered non-comedogenic. However, if your skin is very acne-prone, always patch test new products and introduce them gradually into your routine.

The Period After Opening (PAO) is 12 months. The 30ml bottle typically lasts about 1 month with twice-daily use (AM and PM) using the recommended pea-sized amount. Store in a cool, dry place away from direct sunlight. The press-button cap helps maintain product integrity. While refrigeration isn't required, it can help extend freshness, especially in warm climates.