The draw back? Retinoids—especially retinaldehyde, the strongest above-the-counter retinoid that is present in this Peach & Lily serum—is sort of sensitizing, bringing about dryness and irritation. But this formula is legit interesting, because it employs a compound referred to as ectoin to in essence "pause" the receptors in your skin https://besthottrends.com/discover-the-fountain-of-youth-with-our-anti-aging-formula/