Taking a summer blonde darker? The biggest mistake might be going too dark, too fast. 👀 Celebrity colorist Jacob Schwartz breaks down his approach to transitioning a bright, previously lightened blonde into Warm Brown Butter, including why he fills first, how he adjusts his formula for porosity and where he adds lowlights to rebuild dimension. His biggest rule? Don’t be afraid of warmth. Gold and copper are key to replacing the pigment that blonde hair is missing before layering in richer brunette tones. Save this for your next blonde-to-brunette appointment. 🤎 #btceditorial #behindthechair schwarzkopfusa